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Entropy Clear Laminating Epoxy Resin (CLR) is the base component of the Clear (CLR) low-viscosity, low-color, UV-stable system for composites, coatings & adhesive applications.
It's optimized for hand layup, room temperature processes, or infusion laminating of wood, fiberglass, carbon, or Kevlar. Its air release and UV protection create clearer cured laminates with excellent color stability.
CLR resin forms a hard plastic surface when cured with Entropy hardeners: CLS slow hardener offers long pot life, CLF fast hardener offers shorter pot life and faster curing, and CLX hardener has the fastest tack-free time. The CLR system has a bio-content greater than 30% & can be modified with epoxy-compatible colorants & fillers.
NOTE: For white cosmetic applications, use Entropy Optically Brightened Epoxy Resin (BRT) (uses the same hardeners as the CLR system).
|Clear Laminating Epoxy Resin (CLR) & Hardener, Admixed||Clear Extra Fast Hardener (CLX)||Clear Fast Hardener (CLF)||Clear Slow Hardener (CLS)|
|Mix Ratio by Volume||2:1 (resin:hardener)||2:1 (resin:hardener)||2:1 (resin:hardener)|
|Mix Ratio by Weight||100:47 (resin:hardener)||100:47 (resin:hardener)||100:47 (resin:hardener)|
|Pot Life @ 77°F||18 minutes||21 minutes||43 minutes|
|Tack-Free Time @ 77°F||2 hours||4 hours||8 hours|
|VOC Content||19.5 g/L (0.16 lbs/gal)||31.5 g/L (0.26 lbs/gal)||16.1 g/L (0.13 lbs/gal)|
|Biobased Carbon Content||21%||21%||29%|
|Tensile Strength||9,500 psi||9,500 psi||9,800 psi|
|Flexural Strength||14,000 psi||13,500 psi||14,580 psi|
|Compression Strength||11,330 psi||11,330 psi||12,520 psi|
|Hardness, Shore D||70-80||70-80||70-80|
Super Sap formulations, as opposed to traditional epoxies that are composed primarily of petroleum-based materials, contain renewable, biobased materials sourced as co-products or from the waste streams of other industrial processes, such as bio-fuels and wood pulp production. The benefits of these natural components are exceptionally high adhesion properties and excellent elongation.
Three Easy Ways to Measure Clear Laminating Epoxy Resin and Hardener
Measuring & Mixing Notes: For best results, use a scale to measure the two components by weight (within 5% of the recommended mix ratio). Always mix product thoroughly for at least two minutes. To ensure complete mixing, scrape all surfaces of the container.
IMPORTANT: Clear Laminating Epoxy Resin (CLR) works better in low-humidity environments, especially when it's used outside of the recommended optimal temperature range. See specific temperature ranges in Application Tips.