SuperSap BRT (CLX – CLF – CLS)

20,67475,20 Exc. tax

Optically Brightened Clear Epoxy Resin for White Surfboards

Optically brightened version of our CLR system, for white surfboard lamination and hot coating.


Product Overview

SUPER SAP® BRT Epoxy System is an optically brightened, clear laminating system, designed specifically for ultra white cosmetic applications such as surfboard laminations over EPS (polystyrene) or PU (polyurethane) foam. Based on Entropy Resins classic CLR – CLEAR Epoxy Resin, SUPER SAP® BRT – Bright Epoxy Resin can be paired with all CLR Clear hardeners.

Super Sap – Make Things Better

  • Available in EXTRA FAST, FAST, and SLOW cure speeds – Hardener speeds can be combined to custom working times.
  • Extra Fast Cure: 18 min pot life, 2 HR tack free time
  • Fast Cure: 21 min pot life, 4 HR tack free time
  • Slow Cure: 43 min pot life, 8 HR tack free time
  • Two-part epoxy resin kits are comprised of Super Sap BRT Epoxy and CLX (EXTRA FAST), CLF (FAST) or CLS (SLOW) Hardener.

For dark color substrate applications we recommend our CLR formula.


Best Uses

  • White Surfboards



Key Features Clear, UV stable
Compatible Processes Hand Layup
Epoxy Coatings
Vacuum Bagging
Biobased Content (% C, ASTM D6866) FAST: 21%, SLOW: 29%
Color Clear
Mix Ratio (by volume) 2:1
Mixed Viscosity (@ 25°C) CLX: 580 cP, CLF: 725 cP, CLS: 800 cP
Pot Life (100g @ 25°C) CLX: 18 mins, CLF: 21 mins, CLS: 43 mins
Tack Free Time (@ 25°C) CLX: 2 hrs, CLF: 4 hrs, CLS: 8 hrs
Recommend Full Cure 7 days @ 25°C, SLOW: Post cure recommended
Tesile Strength (ASTM D638) 9,500 psi
Elongation (ASTM D638) 6%
Flexural Strength (ASTM D790) 14,000 psi
Tg (Ultimate, DSC) 65°C
Weight kg

Two-part epoxy resin kits comprised of SuperSap BRT Epoxy and CLX (EXTRA-FAST), CLF (FAST) or CLS (SLOW) Hardener.

· 2 qt epoxy
· 1 qt hardener

Kit sizes

0,75 L, 1,5 L, 3 L, 6 L, 15 L, 30 L

Hardener Speed

CLF – Fast hardener