How deep can you pour West System epoxy?
While it is a slower curing system, it still should not be poured more than ¼” deep at a time. We have found that building up castings ¼” at a time allows the epoxy to cure without overheating.
Can you mix West System hardeners?
One full pump stroke resin to one full pump stroke of hardener delivers the correct ratio. This can also be done for 207 Special Clear and 209 Extra Slow Hardener but at 3 parts resin to 1 part hardener. When mixing, stir the epoxy for at least two minutes to ensure it is thoroughly blended.
Is West System epoxy UV resistant?
Their durability is limited. Alkyd finishes-enamel, alkyd enamel, marine enamel, acrylic enamel, alkyd modified epoxy, traditional varnish and spar varnish-offer ease of application, low cost, low toxicity, and easy availability. Their disadvantages are low UV resistance and low abrasion resistance.
Does West Systems epoxy dry clear?
It is a clear, pale yellow, low-viscosity liquid epoxy resin. Blended with hardener at the proper ratio, it cures to a hard, solid plastic with superior physical properties. Based on which hardener you choose, it cures at a wide range of temperatures.
How long does it take for West System epoxy to cure?
6 to 8 Hours
#205-B Fast Hardener
| Best Use | Fast Hardener for 105 Epoxy Resin |
|---|---|
| Capacity | 0.86 Quart |
| Cure Time | 6 to 8 Hours (Working Time 60-70 Minutes) at 72 F |
| Type | Hardener |
How hot does epoxy get while curing?
How hot does epoxy get while curing? A 100-gram mass of mixed epoxy can reach 400°F. To prevent heat buildup and uncontrolled cure, transfer epoxy from the mixing pot to a roller pan or other wide, shallow container. Fill large cavities with epoxy in multiple layers rather than in a single, thick layer.
What resin has the longest work time?
The longest pot life have epoxy resins with anhydride hardeners like methyltetrahydro phthalic anhydride. Polyamide and polyaminoamides have shorter pot lifes, followed by aromatic amines, cycloaliphatic amines (mostly used IPDA) and aliphatic amines, like TETA (triethylene tetramine) with the shortest pot lifes.
How much resin and hardener do I mix?
VOLUME – To achieve the correct 2:1 mix ratio by volume, simply measure out 2-parts resin to 1 part hardener before mixing the components.
Can you pour polyurethane over epoxy?
Yes, you can. Water-based polyurethane won’t cause problems when applied over epoxy resin coatings. Before putting the poly over, ensure the epoxy resin is sanded for a glossy finish.
How long does it take for West epoxy to cure?
What happens if you add too much hardener to epoxy?
Adding too much of either resin or hardener will alter the chemical reaction and the mixture will not cure properly.
What is the mixing ratio for West System epoxy?
Depending on the hardener you select, WEST SYSTEM Epoxy is mixed at a ratio of five parts resin to one part hardener, or three parts resin to one part hardener. At the proper mix ratio, the number of chemically reactive sites in the resin balances the number of reactive sites in the hardener.