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Duratec

Duratec® products are used to manufacture thousands of items for business and home, transportation and recreation. Around the world you'll find Duratec products from the front end of manufacturing to final finishing. Proven chemistry, exacting quality control and responsive customer support set Duratec apart from competitive products and alternative manufacturing processes.

We offer a variety of Duratec products including Duratec Sunshield Clear Top Coat, Duratec Clear Hi-Gloss Gel Coat Additive and Duratec Primers. These are used to create the strongest and lightest parts throughout the composites industry.

Click on a Duratec image below to get more information and view pricing.



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Duratec Clear Hi-Gloss Gel Coat Additive
Spray Gel Coat Like Paint


Duratec® Clear High Gloss Additive can be mixed in a 1:1 ratio with regular gel coat to reduce viscosity and porosity, improve gloss level, and permit a complete open-air cure. It can also be blended with a 15% ratio to tooling gel coats to upgrade mold surfaces, improve gloss retention, increase impact resistance, and reduce heat distortion.

The reduction in viscosity allows gel coats to be sprayed controllably through siphon and HVLP equipment, reducing sanding and polishing time. When used for repairs, this product will result in a low porosity surface.

When making below-the-waterline repairs on boats, for example, we recommend adding our #71 Styrene Wax to maximize hardness.

Requires 2% MEKP. 
Duratec Sunshield Clear Topcoat
High Gloss Clear Topcoat for Epoxy Parts


Duratec® Sunshield Clear Topcoat is a specially formulated polyester topcoat that offers you excellent gloss levels and UV stability. #1045 is compatible with epoxy, vinyl ester and polyester resins. It can be applied to epoxy laminates as an in-mold or post-mold coating. It offers a durable surface and has great scratch resistance. Sunshield offers excellent anti-yellowing, making it a perfect coating for epoxy or vinyl ester parts. It offers a fast build for a smooth and pit-free surface, reducing cycle time and labor.

Sunshield is not applied like traditional gel coat. To apply, spray a light mist coat (or dust coat), that must set up for two minutes before further application. The dust coat should be a light fog, not a continuous film. Additional coats of 4-5 mils can be applied, again allowing a minimum of two minutes to out-gas. 12-15 mils will provide a nice finish with UV protection. Up to 22 mils can be applied if the part requires aggressive post sanding.

When applying to laminates post-mold, sand the entire surface with 180 grit sandpaper, proving a mechanical tooth. With epoxy laminates, water washing with clean water and a Scotch-Brite pad is necessary before and after sanding. It is not necessary to water wash polyester or vinyl ester laminates. After sanding, remove all dust and acetone-wipe the surface prior to application. For laminates with severe porosity, the first 2-3 mil pass can be worked with a squeegee to fill the holes. Additional coats can be applied after two minutes and while the surface is tacky. The final spray should be sanded with 400 grit and allowed to cure, for 8 hours prior to the final polishing.

After curing, wet sand with sandpaper grits from 400-1500. Because of the tough, scratch resistant nature of the Duratec Sunshield, regular automotive compounds may not be aggressive enough to remo... 
Duratec Gray Surfacing Primer
Easy Sanding, High Build Primer Perfect for Plug Finishing


Duratec® Surfacing Primer is the best choice for coating your plug or reconditioning your mold. It is suitable for use with wood, MDF, tooling board, composite plugs, patterns and models. The unique air-cure technology allows fast cure even with thin coats, it will even bond to epoxy laminates. This surface primer can be applied as heavily as 45 mils to fill fabric pores on plugs or over repairs. To reach your desired spray viscosity, you can thin 5%-15% with #2306 Duratec Thinner if necessary. Duratec Surfacing Primer offers a high heat distortion temperature and minimal shrinkage. By minimizing shrinkage, repairs are easily hidden. The gray primer sands easily and can be polished to a Class 'A' mirror finish.
Requires 2% MEKP. 
Duratec StyroShield Primer
Spray Directly on Styrofoam


Duratec® StyroShield Primer is a polyester primer that is meant to be applied directly to polystyrene foam (also known as Styrofoam). StyroShield contains microspheres that, when cured, insulate and protect polystyrene foam from the chemicals in polyester-based laminating resins, gel coat, and other Duractec products. With StyroShield, low-cost polystyrene can be substituted for urethane foam in plug, mold, and pattern-building applications.

Spray StyroShield using an HVLP gun with a 2.5 mm or larger nozzle. Apply at least 20 mils of StyroShield to ensure complete coverage and surface protection.

When in storage, the microspheres in StyroShield will float to the top and form a hard crust, so thorough mixing is required prior to use. When possible, store StyroShield Primer container upside down.

Requires 2% MEKP.  
Duratec Thinner
Enhance Flow and Leveling Properties


#2306 Duratec® Thinner can be added to any Duratec product to enhance the flow and leveling properties. This thinner also reduces orange peel and porosity while allowing for a smoother spray flow. 
MEKP Hardener
Industry Standard Catalyst


Methyl Ethyl Ketone Peroxide, or MEKP, is required with all polyester resins, gel coats and vinyl ester resin. It is required in different concentrations as defined for each resin product.

Each resin product is available as a kit with the correct amount of hardener. However, hardener may be purchased individually as shown here.
(DDM-9)  

Want to learn more about Duratec Products? Fibre Glast has a free Learning Center with helpful white papers including: Duratec Clear Hi-Gloss Gel Coat Additive and Duratec Gray Surfacing Primer.

You can place your order on our website or, if you have any questions, call 1.800.838.8984 | 8:00am - 8:00pm EST Mon-Fri.


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Fibre Glast Development Corp.
385 Carr Drive
Brookville, OH 45309
Phone: 800-838-8984
Fax: 937-833-6555
Email: customerservice@fibreglast.com

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