Matte Fiber HTPLA - Gray

Matte Gray PLA Filament

$5.00 USD $6.00 USD


A neutral gray reminiscent of concrete or stone. Gray Matte Fiber HTPLA feels industrial, but uses plant fibers for texture and sheen. Great for both artistic and technical parts with no special hardware required!

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Technical Data Sheets

Technical data sheets available for download here

Safety Data Sheets

Safety data sheets available for download here.


We provide a number of domestic shipping options within the United States via UPS, including free shipping on orders of $50 or more. We also provide international shipping via DHL Express.


At ProtoPlant's discretion, returns and replacements will be accepted within 90 days of purchase.  Please check the material label before opening your product.  Only sealed product can be returned. Shipping of items for exchange or refund is paid by the customer. More information about returns and replacements can be found in our terms and conditions

Prop 65: This product contains a chemical, Carbon Black, which is known to the State of CA to cause cancer when unbound particles are inhaled.

Designer Finish + Engineering Performance for Every Printer!

A bright alternative to Carbon or Glass Fibers, Red Matte Fiber HTPLA uses plant fibers great looks in both artistic and technical parts with no special hardware required!


Printed parts have a low luster, textured surface which creates a highly desirable contrast between light and shadow. Texture, color, and sheen can be somewhat manipulated by printer settings as well as post-processing. Printed parts can also be smoothed or weathered with paint for alternate aesthetics. The plant-based fibers lend well to adhesion of paint and other aesthetic coatings.


Based on Proto-pasta HTPLA, this Matte Fiber version can be heat treated to retain more stiffness to higher temperatures. Dimensional stability is improved compared to HTPLA without fibers. The plant-based fibers improve adhesion of glues and coatings. Performance is similar to Carbon Fiber HTPLA but processing of Matte Fiber does NOT require a wear resistant nozzle.


No special hardware or nozzles are required for this plant-based composite. This material is not overly brittle, but is stiff and will break under excessive load. It prints like PLA on non-heated beds. Suggested print temperature is 190-230C, but we had good luck with a slow 1st layer at 230C on cold blue tape and 210C thereafter for a balance of strength and aesthetic.

This material does absorb moisture and dry filament is recommend for best results. When saturated with moisture, this material oozes more readily. Lowering flow and/or temperatures can minimize oozing and improve detail, though higher temperatures are recommended for best mechanical properties. With higher temperatures, ooze artifacts can be removed post build.


This material can be shaved/carved with a sharp blade for a smooth finish. Experiment with weathering or other painting techniques for a unique look. Also, expect improved bonding strength with glue compared to plastic without fiber.

Customer Reviews
4.6 Based on 18 Reviews
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Filter Reviews:
Seth Y.
United States
I recommend this product

Surprisingly close to resin's color

This filament is not only almost exactly like the standard 'resin grey' but I've had really solid prints from it. Note: I print for TTRPGs, so fine details are important, and this filament doesn't disappoint. Highly recommend.

Scott R.
United States United States

Great Gray

Super matte and prints very well!

Karol H.
United States United States

printer supplies

very good service

William D.
United States United States

Super Good Filament. Reasonable Price. Why buy something else?

These HT PLA filaments print very nicely. You can choose to get a super nice 3D print or you can back off on the quality and get a nice-enough print for less time. Nice choices to have. Colors are quite nice and saturated too.

Kiel H.
United States

Great PLA

Love all the Proto Pasta I have tried. The matte fiber finishes are great for everyday prints. They don’t have that shiny plastic look like normal PLA. This is my new favorite stuff to print with.

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