spoolscout.com

SpoolScout is a filament comparison tool that lets you filter spools by manufacturer, material type, color, price per kilogram, and a set of measured material properties, then view them side by side in a single table. It is most useful when you already know roughly what you need (for example, "a 1 kg spool of PLA under a certain price") and want to check how specific brands and variants differ on paper before buying. The site earns commissions through affiliate links, so purchase links route to retailers such as Amazon rather than selling filament directly.

What you can filter and compare

The filter panel on the main page exposes these fields:

• Product – free-text search across filament listings
• Color
• Price/kg
• Weight (kg) – spool size, e.g. 1 kg, 2 kg, 6 kg
• Diameter (mm)
• Density (g/cm³)
• MFI (g/10 min) – melt flow index
• Bending modulus (MPa)
• Bending strength (MPa)
• Impact strength (kJ/m²)
• Print info (°C) – recommended print temperature range

Each row in the results table also carries an Affiliate link column ("Buy on Amazon"), so the comparison view doubles as a purchase entry point.

Step-by-step: comparing two brands or two types

1. Narrow by material type first. Use the Product field or the type-related filters to isolate the family you care about (for example, all PLA listings, or PLA versus PLA Plus). This keeps the table short enough to read.
2. Set a weight and price/kg range. Spool weight matters because the same filament is often sold in 1 kg, 2 kg, and 6 kg formats; comparing price per kilogram rather than sticker price avoids misleading conclusions.
3. Add the mechanical filters that match your part. If the print will be loaded in bending, sort or filter on bending modulus and bending strength. If it will be dropped or impacted, use impact strength.
4. Check print info (°C). Confirm the recommended nozzle range fits your printer before you commit to a material.
5. Read across rows for the same manufacturer. Because listings repeat per color and per spool size, the same base material appears many times — compare the property columns, which stay constant for a given formulation, and use the price/weight columns to pick the cheapest format.

Worked example: Overture PLA vs Overture PLA Plus

The listings show two Overture formulations with clearly different property sets:

Reading this: standard PLA is the stiffer, stronger option on these two metrics, while PLA Plus flows less readily (lower MFI) and prints over a slightly wider temperature window. Both are listed as unavailable at the time of the data, with purchase links pointing to Amazon — so the table tells you how they differ, but availability and live price still need checking at the retailer.

The same pattern repeats across colors (Black, White, Digital Blue, Orange, Cement Gray, Chocolate, Brown, Blue, Mixed) and spool sizes (1 kg, 2 kg, 3 kg, 6 kg). Properties are identical within a formulation; only color, weight, and price/kg change.

Practical tips

• Compare like with like. A 6 kg mixed-color bundle and a single 1 kg spool are not equivalent purchases even if the price/kg looks close — check whether you actually want the colors included.
• Treat missing values as unknown, not zero. Some rows show a dash for impact strength; that means no figure is listed, not that the material has no impact resistance.
• Use the data sheet view for the full picture. The site has a separate Data Sheets section for properties beyond the comparison columns.
• Verify before buying. Because listings can show as unavailable and prices are not guaranteed current, confirm the price and stock on the retailer page reached through the affiliate link.

When SpoolScout is the right tool

Use it when you are choosing between specific spools and want a property-and-price table in one place. It is less suited to open-ended browsing — if you do not yet know which material family you need, start from the material type and print temperature, then come back to compare brands within that family.

SpoolScout is a 3D printing filament finder and comparison tool. It lets you browse filaments and compare them by price, type, manufacturer, and measured material properties, then follow a link to buy. It is useful when you already know roughly what you need (for example, a stiff PLA for a functional bracket) but want to check how specific spools differ before spending money.

What you can do on SpoolScout

The site is built around a filterable product table. From the main page you can:

• Browse a list of filament spools.
• Compare entries side by side using their listed properties.
• Filter by product, color, price per kg, price, weight, diameter, and a set of material properties.
• Open data sheets for more detail on a material.
• Follow affiliate links to purchase, typically to Amazon.

The site also states it receives commissions for purchases made through links on it, so buying links are monetized.

The properties you can filter and compare

The filter panel exposes both commercial and technical fields. Based on the site's own filter labels, you can narrow results by:

This mix is the main reason to use SpoolScout rather than a shop listing: a retailer usually shows price and color, while SpoolScout puts price next to stiffness, strength, and print temperature so you can weigh cost against performance.

A concrete example of how the data looks

The site's own listing for Overture PLA Plus (Black, 1 kg) shows:

• Density: 1.21 g/cm³
• MFI: 7.3 g/10 min
• Bending modulus: 2394 MPa
• Bending strength: 61.4 MPa
• Print temperature: 190–230 °C

For comparison, Overture standard PLA (Black, 1 kg) is listed with:

• Density: 1.21 g/cm³
• MFI: 9 g/10 min
• Bending modulus: 3279 MPa
• Bending strength: 84.9 MPa
• Print temperature: 190–220 °C

Reading these together tells you something practical: the standard PLA is listed as stiffer and stronger than the "Plus" variant, while the Plus has a lower MFI (which generally indicates it flows less readily) and a wider print temperature range. Whether that matters depends on your part — a display piece and a load-bearing bracket will weight these numbers differently.

How to use it for a project

1. Open the browse/compare table.
2. Set the filters that matter for your job. For a stiff, cheap part, start with type and price/kg, then sort or scan bending modulus. For a part that needs to print easily, look at print temperature and MFI.
3. Compare the shortlisted spools on the same fields — keep the units consistent (MPa, g/cm³, °C) so you are not comparing unlike numbers.
4. Check the data sheet link for anything the table does not cover.
5. Use the buy link if you are ready to purchase, keeping in mind it is an affiliate link.

What to keep in mind

• Listings can show as unavailable. In the sample data, several Overture spools display "Unavailable" as the price, so the price comparison is only as current as the underlying listings.
• Property values are material-level, not print-level. Bending modulus and strength describe the filament's reported material behavior; your actual part depends on layer orientation, infill, and settings.
• Affiliate links mean the site earns on purchases, so treat the buy links as convenience, not as an independent recommendation.
• Availability and pricing change, so verify on the retailer page before buying.

In short: SpoolScout is worth using when you want to compare filament options on technical properties and price in one place, and it is less useful if you only need a single spool and already know the brand and color you want.

SpoolScout shows a price-per-kilogram field and an affiliate purchase link (typically "Buy on Amazon") for each filament listing, but it is a comparison and discovery tool, not a store — you complete the purchase on the retailer's site. Treat the listed price as a reference point rather than a live quote: many listings in the current data show the price as "Unavailable," and the site states it earns commissions on purchases made through its links.

What SpoolScout actually displays

Each filament row in the comparison table combines product data with a purchase path:

The same material appears as multiple rows when it comes in different spool sizes or colors — for example, Overture PLA Plus Black is listed separately at 1 kg and 2 kg, and Overture PLA Black appears at 1 kg, 2 kg, 3 kg, and 6 kg. That matters for price comparison: the price/kg column is the only figure that lets you compare a 1 kg spool against a 6 kg spool fairly.

Are the prices real-time?

Not reliably. In the current listing data, the price field for the Overture entries reads "Unavailable" while the price/kg field is also blank. This tells you two things:

• The site pulls price data from an external source, and that source can return nothing for a given product.
• A blank or "Unavailable" price does not mean the filament is discontinued or out of stock — it means SpoolScout could not populate that field at that moment.

Because of this, always confirm the current price on the retailer page before deciding. The affiliate link is the authoritative destination; the comparison table is the shortlist.

How to buy through SpoolScout

1. Open the Browse/Compare table and filter by type, manufacturer, color, or a property such as print temperature.
2. Narrow to the spool size you want — check the Weight (kg) column, since the same color is often sold in several sizes.
3. Compare the price/kg column across candidates rather than the raw price, so different spool sizes are comparable.
4. Click the affiliate link ("Buy on Amazon") on the row you chose.
5. Verify the live price, availability, and shipping on the retailer page before checkout.

The purchase, payment, and delivery all happen on the retailer's site. SpoolScout does not process transactions.

What the commission model means for you

SpoolScout discloses that it receives commissions for purchases made through links on the site. Practically, this means:

• The purchase link is monetized, so the site has an incentive to send you to a partner retailer.
• It does not change the price you pay — affiliate commissions are paid by the retailer out of its margin, not added to your cart.
• It does mean the retailer list may be narrower than "everywhere you could buy this filament." If a brand you want isn't linked, check the manufacturer or other retailers directly.

Practical checklist before you buy

• Confirm the price on the retailer page; ignore "Unavailable" entries in the table.
• Compare price/kg, not price, when spool sizes differ.
• Check the print temperature range against your printer's capabilities.
• Use the mechanical properties (bending modulus, bending strength, impact strength) to shortlist, then read the manufacturer's datasheet for the final call.
• Remember the link is an affiliate link, so cross-check one alternative retailer if price matters to you.

SpoolScout lists a set of material properties for each filament — MFI, bending modulus, bending strength, impact strength, density, and a print temperature range. These are datasheet values that describe how the plastic behaves, not how a specific print will turn out. Use them to narrow candidates and sanity-check a purchase; use the print temperature range as a starting point for your slicer, then tune from there. The numbers are most useful when compared between filaments of the same type (PLA vs. PLA, PETG vs. PETG), because a "high" value only means something relative to the rest of that family.

The properties at a glance

MFI (melt flow index)

MFI measures how many grams of molten polymer flow through a standard die in 10 minutes under a set load and temperature. A higher number means the melt is runnier and flows more easily; a lower number means it is thicker and resists flow.

• Higher MFI generally extrudes more readily, which can support faster printing and finer detail, but the melt is less resistant to sagging and the part may be weaker.
• Lower MFI tends to give better layer strength and dimensional stability, but may need slower speeds or higher temperatures to extrude cleanly.

On SpoolScout you can see this directly: Overture PLA Plus lists 7.3 g/10 min, while standard Overture PLA lists 9 g/10 min. Same brand, same base chemistry, but the Plus variant flows less — consistent with it being a tougher, less brittle formulation. MFI is only comparable between materials tested under the same conditions, so treat it as a relative signal within a product line, not an absolute spec.

Bending modulus and bending strength

These two are often confused, so keep them separate:

• Bending modulus (MPa) is stiffness. It describes how much the material deflects under a given force before it permanently bends. Higher = stiffer, more dimensionally rigid.
• Bending strength (MPa) is the stress at which it actually fails in bending. Higher = it takes more force to break it.

A material can be stiff but brittle (high modulus, low impact strength), or flexible but tough. Using the SpoolScout data: Overture PLA Plus shows a bending modulus of 2394 MPa and bending strength of 61.4 MPa, while standard Overture PLA shows 3279 MPa and 84.9 MPa. Standard PLA is the stiffer and stronger of the two in bending — but that is exactly why PLA Plus exists: it trades some stiffness for toughness, which shows up in the impact strength column.

Impact strength

Impact strength (kJ/m²) measures how much energy the material absorbs before it fractures — in plain terms, how well it survives being dropped or hit. This is the number to check when a part will take knocks rather than steady load.

• High impact strength = tough, resists cracking and shattering.
• Low impact strength = brittle, can crack along layer lines under sudden force.

This is the property most often missing from the SpoolScout rows shown (many entries list a dash), so when it is present, treat it as a strong differentiator. If your part is a tool handle, a clip, or anything that gets bumped, prioritize impact strength over bending modulus.

Density

Density (g/cm³) is mass per unit volume. It matters for two practical reasons: estimating how much a printed part will weigh, and comparing cost per part rather than cost per spool. A denser filament at the same price per kilogram gives you slightly less volume of plastic, so a lighter-density material can be the better value for large prints even at an identical price/kg.

Print temperature range

The "Print info" column gives a recommended nozzle range — for example 190–230 °C for Overture PLA Plus and 190–220 °C for standard Overture PLA. This is a starting window, not a fixed setting.

• Start in the middle of the range for a first test print.
• Move toward the lower end for better bridging and detail; toward the upper end for stronger layer adhesion and faster flow.
• If you change print speed significantly, re-check temperature — faster printing usually needs more heat to keep up.

How to use these numbers when choosing

1. Filter by type first (PLA, PETG, etc.), then compare properties only within that type.
2. Match the property to the job. Stiffness for structural brackets, impact strength for parts that get hit, MFI when you care about print speed or fine detail.
3. Check density and price/kg together to compare real cost per part, not just per spool.
4. Use the temperature range as your slicer starting point, then run a small test print before committing to a long one.
5. Treat missing values as unknown, not zero — a dash in the impact strength column means the data isn't listed, so don't assume the filament is brittle.

One caveat worth keeping in mind: SpoolScout notes that it receives commissions for purchases made through links on the site, so the "Buy on Amazon" links are affiliate links. The property data itself comes from manufacturer datasheets, which describe the raw material under lab conditions — your printed part's real-world performance also depends on layer height, infill, orientation, and cooling, so use these numbers to shortlist and verify, not to predict a print exactly.

SpoolScout is a filament comparison tool that lets you filter spools by color, price, weight, diameter, and a set of mechanical and thermal properties, then jump to a retailer to buy. It works best when you already know one or two constraints (a color, a material type, or a strength target) and want to see which spools meet them side by side. The site earns commissions on purchases made through its links, so the "Buy on Amazon" buttons are affiliate links rather than direct storefronts.

What you can filter and compare

The filter panel on the main page exposes these fields:

There's also a Clear button to reset filters and an Advanced toggle for the less common numeric fields.

Step-by-step: narrowing to a shortlist

1. Start with one hard constraint. Pick the color or the material you need. Filtering on color first removes the most rows fastest.
2. Set a price/kg ceiling. Use Price/kg rather than Price, because a 2 kg spool and a 1 kg spool of the same filament have different totals but the same per-kg cost. This keeps large and small spools on equal footing.
3. Add a mechanical threshold if the part is functional. For a bracket or a part that flexes, set a minimum Bending strength or Impact strength. For a stiff, dimensionally stable part, raise Bending modulus instead.
4. Check the print temperature range. Confirm the listed range (for example 190–230 °C) fits your hotend's comfortable operating window before you commit.
5. Compare the remaining rows. The table shows each spool's full property set, so you can read density, MFI, and the mechanical values across candidates without opening separate pages.
6. Follow the affiliate link. Click Buy on Amazon on the row you want. The link carries SpoolScout's commission; the price and availability you see are Amazon's.

Reading the property columns

Using the Overture rows visible on the page as a concrete example:

• Overture PLA Plus (Black, White, Digital Blue, Orange) lists density 1.21 g/cm³, MFI 7.3 g/10 min, bending modulus 2394 MPa, bending strength 61.4 MPa, print range 190–230 °C.
• Overture PLA (Black, White, Blue, Brown, Cement Gray, Chocolate, Mixed) lists the same density 1.21 g/cm³ but MFI 9 g/10 min, bending modulus 3279 MPa, bending strength 84.9 MPa, print range 190–220 °C.

Two things worth noting from that comparison:

• Higher modulus and strength don't automatically mean "better." The standard PLA is stiffer and stronger on paper, while PLA Plus has a lower MFI and a wider temperature window. Which one suits you depends on whether the part needs rigidity or easier flow and a broader print range.
• MFI is a flow indicator, not a quality score. A higher MFI means the melt flows more readily; it interacts with your print temperature and speed choices rather than being a standalone ranking.

Comparing spool sizes

The same filament appears in multiple weights — for example Overture PLA Plus in 1 kg and 2 kg, and Overture PLA in 1 kg, 2 kg, 3 kg, and a 6 kg mixed pack. Because the property columns are identical across those rows, the only real differences are:

• Price/kg — the normalized figure that tells you whether the bulk spool is actually cheaper per kilogram.
• Total price and weight — what you pay and how much material you store.

If two rows share the same color and properties but differ in weight, sort or scan by Price/kg to see whether the larger spool is worth the storage and upfront cost.

Common snags

• "Unavailable" rows. Some listings show as unavailable; the affiliate link may still point to a product page, but you can't buy at that moment. Filter or scan past them.
• Missing values. Not every spool has every property filled in (impact strength is blank for the Overture rows above). Treat blanks as unknown, not as zero.
• Affiliate links change nothing about your price. The commission comes out of the retailer's side; you pay the listed Amazon price.
• Property values are per-listing, not universal. The same brand and color can differ between product lines, so compare the specific row, not the brand name.

If you only need a quick answer, filter by color and price/kg, then read bending strength and print temperature on the surviving rows — that covers most everyday filament decisions.