Universal All-purpose Clear Biobased Epoxy System (Fast or Slow)

45.0080.00 "incl. VAT"

Replacement for Entropy CLR, very similar product all in all.

Sei Whale is a clear, all-purpose, epoxy system with high UV resistance.

Choose between various pot life times. Fast or Slow.

Mix ratio:100g : 42g

In general, dont mix more then 250-300mL in one container, the mix can become too hot and will harden fast.

Low smell, low toxicity! Great to work with and more environmental!

TDS data sheet

Fast Cure: mix: 100:42g. (14-17 min pot life)
Slow Cure: mix 100:42g. (45-55min pot life.)
Tack-free time for the fast version is below 5h and less than 8h for the slow one. 

In case of heat curing (if possible use the CPM or Polar Bear version), in general at 50min it will cure in 3h, at 60min it will cure in 80 minutes, 70 degrees it will cure in 40min…
Make sure you use a digital scale. Mix by weight.

Make sure you use gloves.

Tip 1: Mix a pot of 200-300mL of epoxy at the time. Dont mix much more then this. Stir well for 2min with your hand, scrape the edges. The mix can become a bit hot, this is normal. Let it sit for 1-2 minutes for air to escape!

Tip 2: make sure you are protected with gloves as skin contact it the worst exposure.

Tip 3: If any crystals are present in the Resin, please make a warm water bath (about 50C or above should do, in production the resin is heated to 100 degrees so no worries) and place the Resin container in the warm water and stir til crystals are gone. This is normal for some Resins. Let it cool down before use! Do this before mixing!

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All-purpose Biobased Epoxy System


Sei Whale is a clear, all-purpose, epoxy system with high UV resistance.


All-purpose applications with variable working times for room temperature cure, with post-curing options. Good for hand lay-up, coating and filling.

Key Features

Easy impregnation of reinforcements and two hardener options. Ideal system for transparent applications.

-Clear epoxy resin with U.V filter
-For laminations and coatings in fiber glass, carbon fiber…
-Sustainable resin (up to 25% from organic waste from manufacturing process)
-Low viscosity
-High gloss
-Mix proportion in weight: 100:42
-Mix proportion in volume: 2 to 1
-Working time: 14-17 min or 45-55min

Application Tips:

  • For best results, measure the two components by weight within 5% of the recommended mix ratio.
  • Always mix product for at least two minutes, scraping the container to ensure complete mixing.
  • Use products in a controlled environment. Avoid high humidity and cold temperatures.
  • Amine blush, a by-product of the curing process, appears as a wax-like film cured epoxy and is more noticeable in cool, moist conditions. It can clog sandpaper and inhibit subsequent bonding. Blush is water-soluble and easily removed with clean water (not solvent) and an abrasive pad.
  • For good adhesion, epoxy bonding surfaces should be clean, dry and sanded.
  • If unfamiliar with the product, create smaller test samples before starting a larger scale project.

Additional information

Weight 3 kg

1,5L, 3L

Pot life

Fast, Slow