CLR – Clear Laminating Epoxy

From: 54.12

Clear, general use, laminating epoxy for composites, coating, and adhesive applications. CLR is a SUPER SAP® Formulation.

SKU: EK-CLR Category:

Product Overview

CLR Clear Laminating Epoxy is our flagship, high-performance clear-coating epoxy system.  A SUPER SAP® Formulation, the CLR system is a water clear, UV-stabilised epoxy system for applications that require a low-colour, low-yellowing epoxy such as high-colour applications.  This system features a quick air-release and world-class UV resistance package. CLR works with multiple hardeners to match your working parameters.  It has an ideal viscosity for a wide range of applications that use hand layup techniques with fast, room-temperature cures.

Available in CLX (Extra Fast), CLF (Fast) and CLS (Slow) cure speed – Hardener speeds can be combined to customise working times.

CLX Extra Fast Cure: 18 min pot life, 2 hr tack free time, Recommended Full Cure 7 days @ 25°C.

CLF Fast Cure: 21 min pot life, 4 hr tack free time, Recommended Full Cure 7 days @ 25°C.

CLS Slow Cure: 43 min pot life, 8 hr tack free time, Recommended Full Cure 7 days @ 25°C, Post cure recommended.

Two-part epoxy resin kits comprised of CLR Clear Laminating Epoxy Resin and CLX (EXTRA FAST), CLF (FAST) or CLS (SLOW) Hardener.

For white substrate applications, we recommend our BRT Optically Brightened Laminating Epoxy Resin formula.

Best Uses

Fibreglass composites

Carbon fibre composites

Natural fibre composites

Clear Coatings

Fibreglass boat repair

Adhesives and sealants

Surfboards, standup paddleboards, handplanes

Key Features Clear,
UV stable
Applications CLX: Professional Laminating/Hand Layup/Coating System
CLF & CLS: General Laminating/Adhesive/Coating System/Hand Layup/Vacuum Moulding
Biobased Content (% C, ASTM D6866) CLX Extra-Fast Hardener Kit: 21%
CLF Fast Hardener Kit: 21%
CLS Slow Hardener Kit: 29%
Colour Clear
Mix Ratio (by volume) 2:1
Mixed Viscosity (cP @ 25°C) CLX Extra-Fast Hardener Kit: 580 mPas
CLF Fast Hardener Kit: 725 mPas
CLS Slow Hardener Kit: 800 mPas
Pot Life (100g @ 25°C) CLX Extra-Fast Hardener Kit: 18 min
CLF Fast Hardener Kit: 21 min
CLS Slow Hardener Kit: 43 min
Track Free Time (@ 35°C) CLX Extra-Fast Hardener Kit: 2 hr
CLF Fast Hardener Kit: 4 hr
CLS Slow Hardener Kit: 8 hr
Recommend Full Cure CLX Extra-Fast Hardener Kit 7 days @ 25°C
CLF Fast Hardener Kit 7 days @ 25°C
CLS Slow Hardener Kit 7 days @ 25°C
Tensile Strength (ASTM D638) CLX Extra-Fast Hardener Kit: 65.5 MPa
CLF Fast Hardener Kit: 65.5 MPa
CLS Slow Hardener Kit: 67.6 MPa
Elongation (ASTM D638) CLX Extra-Fast Hardener Kit: 6%
CLF Fast Hardener Kit: 5%
CLS Slow Hardener Kit: 6%
Flexural Strength (ASTM D790) CLX Extra-Fast Hardener Kit: 96.5 MPa
CLF Fast Hardener Kit: 93.1 MPa
CLS Slow Hardener Kit: 100.5 MPa
Tg (Ultimate, DSC) CLX Extra-Fast Hardener Kit: 77°C
CLF Fast Hardener Kit: 65°C
CLS Slow Hardener Kit: 77°C