HAPCOAT  3726 - Hapco Inc. - 

HAPCOAT 3726 is a high heat resistant, thixotropic, gel coat that is specifically designed to reproduce surface details exactly and eliminate print through. When HAPCOAT 3726 is used with HAPCURE 7 curing agent, it is ideally suited for molds filled with aluminum conductites or sand, or backed with fiberglass cloth. This is due to its fast "tack-up" time which eliminates any print through.
- Formulated to withstand 350°F continuous service, & intermittent service to 400°F
- Being thixotropic, HAPCOAT 3726 applies easily with a brush, and will not sag when applied to a vertical surface
- Easily machined and can be drilled, tapped, or milled with conventional tools
- When used with HAPCURE 7, HAPCOAT 3726 reaches "tacked-up" (bubble gum) state in approximately 30-45 minutes.
- Short-term exposure to 400°F and continuous service to 350°F is possible with this system.
- Reproduces the finest surface detail and texture.
- There is almost no shrinkage during cure with HAPCOAT 3726.
- May be used with a variety of curing agents to accommodate a wide range of application requirements.

HAPCOAT 3726 Applicatiions:
These high heat transfer and high heat distortion properties make HAPCOAT 3726 especially suitable for:
- Sample and production molds for foam molding
- Slush molding
- Injection molding
- Blow molds
- Autoclave molds
- Molds for low melting alloys for wax
- Molds for thermosets, such as epoxies, polyesters, silicones, and urethanes
- High temperature vacuum and pressure forming molds
- Hot press dies
- Foam molds