How do you use West System epoxy?

Which Epoxy System Should You Choose?

  1. Start with 105 Resin, the basic ingredient of all West System epoxy compounds.
  2. Use 300 Mini Pumps for convenient and accurate metering.
  3. Mix with one of four West System hardeners.
  4. Add one of six West System fillers to thicken the mixture as needed.

How long does it take for West epoxy to cure?

#205 Fast Hardener, mixed at a 5:1 ratio with #105 Resin, results in a pot life of 9-12 minutes at 72°F, with solid cure in 6-8 hours. It has a minimum recommended working temperature of 40°F.

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.

Is West System epoxy good?

WEST SYSTEM 105 Epoxy is a professional quality, two-part epoxy system developed for high strength and good versatility. The Epoxy Selection Guide is a handy tool to help you pair 105 Resin with a choice of four hardeners to best match your working temperatures, desired cure speed, and coating clarity.

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Is West System epoxy waterproof?

But since WEST SYSTEM Epoxy is very strong and an excellent adhesive, it strengthens the wood and makes it waterproof.

Will epoxy set in cold weather?

Some resin/hardener combinations are formulated to cure in temperatures as low as 35°F. However, simply using a hardener that cures in colder temperatures does not guarantee dependable bonds. Epoxy can be used at cold temperatures but must be handled and applied with techniques adapted to cold temperatures.

What color is West System epoxy?

WEST SYSTEM pigments are available in three colors, white, black and gray. We suspend the pigments in an epoxy resin base which allows them to blend thoroughly into the epoxy to make very uniform colors. Because the pigment has an epoxy resin base, it is important not to add more than the recommended amount.

What temperature does epoxy need to cure?

One of the most important factors to ensure your epoxy resin cures properly is temperature: the ideal temperature for both your ArtResin and your workspace is slightly warmer than room temperature: 75-85F or 24-30C.

Does West System epoxy dry clear?

An ultraviolet inhibitor in 207 Special Clear Hardener helps provide a beautiful, long-lasting finish when used with quality UV filtering varnish. 105/207 cures clear and colorless.

Does tacky epoxy ever cure?

You cannot leave the sticky resin, as it will not harden after time, it will remain sticky. You will have to either throw your item away or fix the problem. In order to avoid the problem all together make sure to do the following: You must measure out your resin and hardener precisely.

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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.

Why did my epoxy pour crack?

So, what exactly causes epoxy to crack? The most common reason is the epoxy got too hot while curing, causing it to cure faster and unevenly. The changes and differences in tempurature throughout the pour caused expanding and shrinking, which in turn cracked the already cured areas.

Is epoxy permanent?

Epoxy glue is long-lasting, designed to create permanent bonding. So naturally, it’s not the easiest substance to remove so you should take care when applying the epoxy adhesive.

Does epoxy get old?

Does epoxy resin ever expire? Yes, of course all epoxy resin and hardeners have shelf lives. The hardeners for epoxy resins are the more concerning (though still long-lived) materials. It is suggested that most hardeners are used within a year closed, or 6 months if opened.

Does old epoxy cure?

While WEST SYSTEM® epoxy has a long shelf life, age will eventually affect its handling characteristics and cured strength. Although the cured strength of older epoxy may be adequate for most projects, it’s a good idea to use epoxy that less than a couple years old on critical structural joints.

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