POLYCOR® 947 NEUTRAL BASE
Polycor® 947 Neutral Base have been developed for the fiberglass industry where reduced burn characteristics are needed. When properly applied, 947 series gel coats will meet ul 94v-0 requirements. Sfp gel coats are formulated with a brominated polyester resin system. Federal, state or local regulations may limit their use in certain applications. Check with the appropriate governing agency. Since the flame properties of sfp gel coats in the cured state will vary depending on catalyzation, ultimate cure, and the laminating materials used, it is suggested that the user submit samples of the entire composite for testing by an independent lab. Polynt’s 947 series gel coats are designed for interior, non-water immersion service only. Because these gel coats are formulated with a brominated polyester resin, they do not have good resistance to UV and/or water attack. These gel coats are ready to use, easy to spray, sag resistant, fast curing and require only the addition of the proper amount of an appropriate methyl ethyl ketone peroxide to cure. Sfp's are available in many visually appealing colors. Certain custom color matching is available on request.
Product families
Applications
- Glazing & Window Elements
- Shingles & Tiles
- Fence Decks & Rails
- Interior Fixtures
- Pipes & Plumbing
- Siding & Trim
- Structural Components
- Wall Panels
- Pavement Highways Roads & Bridges
- Aerospace & Aviation
- Rail & Mass Transit
Product Families
- Gelcoats & Topcoats
Other characteristics
- Brand
- POLYCOR
- Color
- Off White, White
- Off White
- White
- Functions
- Surface Finish
- Cure
It is recommended that gel time be checked in the customer's plant because age, temperature, humidity and catalyst will produce varied gel times. All data referencing gel or cure refers specifically to Arkema Luperox® DDM-9 catalyst. United Initiators Norox® MEKP-9, Norox® MEKP-9H, Akzo Nobel CADOX L50a and CADOX D-50 are expected to yield similar performance. Arkema Luperox® DHD-9, United Initiators Norox® MEKP-925 and Norox® MEKP-925H, and Pergan HP-90 may yield slightly shorter gel and cure times.; The catalyst level should not exceed 3% or fall below 1.2% for proper cure. Recommended range is 1.2% to 3.0% with 1.8% at 77°F being ideal. Normally, the gel coat film is ready for lamination in 45 to 60 minutes. This time element is dependent on material temperature, room temperature, humidity, air movement, and catalyst concentration. Special fast-cure versions are available but must be requested. These products offer lay-up times of 30 minutes or less depending on gel times. Fast cure products have shorter stability and should not be inventoried over 45 days.; These products (standard or fast cure) should not be used when temperature conditions are below 60°F, as curing may be adversely affected.
- Markets
- Automotive & Transportation
- Building & Construction
- Technology
- Composite Materials
- Application Methods
- Spray
- Handling
Uncatalyzed, standard cure gel coats have a shelf life of 120 days from date of manufacture when stored at 73°F or below, in a closed, factory-sealed, opaque container, and out of direct sunlight. Fast cure gel coats (gel time less than 9.0 minutes) are stable for 60 days. Shelf life is cut in half for every 20°F over 73°F. Totes of product can have even shorter shelf life – 66% of that for drums.
- Composite Materials Functions
- Surface Finish
Technical data
Table 1 of 1
10 rows| Characteristic | Value | Unit |
|---|---|---|
| Sag Resistance at 77°F (Good) | 20 | mils |
| Hide (most formulations) at 77°F (Completed) | 10 | mils |
| Lay-up Time at 77°F | 45-60 | minutes |
| Viscosity Brookfield RVF #4 Spindle at 4 rpm at 77°F (White and Off-Whites) | 15,500-20,500 | cps |
| Viscosity Brookfield RVF #4 Spindle at 4 rpm at 77°F (Various Colors) | 10,000-18,000 | cps |
| Thixotropic Index (2/20) at 77°F | 7 | — |
| Flash Point at 77°F | 85 | °F |
| VOC at 77°F | 39 | % |
| Weight per Gallon at 77°F (depending on color) | 10.0-12.5 | lbs/gallon |
| Gel Time att 1.8% MEKP at 77°F | 12 | minutes |
