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Entropy Compression Molding Slow Hardener (CPS) is a slow hardener for use with Entropy Compression Molding Epoxy Resin (CPM). The CPM system provides excellent fiber wet out and limits sag in high-temperature cure applications, making it ideal for compression molding processes used to create composite parts. CPM has excellent elongation properties and high modulus, resulting in strong, lightweight composites.
CPS (Slow) Hardener cures in 40 minutes @ 180°F. CPM resin and CPS/CPF hardeners have a bio-content greater than 30% & can be modified with epoxy compatible colorants & fillers. For a faster cure rate, use Compression Molding Fast Hardener (CPF). CPS hardener requires the corresponding size of Compression Molding Epoxy Resin (CPM) for use (2:1 mix ratio). See chart below.
|Specifications & Mechanical Data||CPM/CPS Hardener Admixed|
|Mix Ratio by Volume||2:1 (resin:hardener)|
|Mix Ratio by Weight||100:40 (resin:hardener)|
|Pot Life @ 77°F||50 minutes|
|Tack-Free Time @ 77°F||N/A|
|Recommended Full Cure||40 minutes @ 180°F|
|Biobased Carbon Content||31%|
|Tensile Strength||8,990 psi|
|Flexural Strength||13,450 psi|
|Compression Strength||11,410 psi|
|Hardness, Shore D||70-80|
|CPM Epoxy Resin Quantity||CPS Hardener Quantity||Mixed Quantity|
|1 qt. resin||16 oz.||48 oz.|
|1/2 gallon resin||1 qt. hardener||3 qt.|
|1 gallon resin||1/2 gallon hardener||1.5 gallons|
|5 gallons||2.5 gallons||7.5 gallons|
Compression Molding Epoxy Resin (CPM)/Compression Molding Slow Hardener (CPS) System Features
CPM/CPS Resin System Best Uses
Safety and Handling Information
Despite the natural derivation of Entropy resin products, exposure to these materials represents hazards typical of all epoxy resins. Exposure should be minimized and avoided through the use of proper personal protective clothing & equipment, and appropriate manufacturing controls. All persons who use, store, or transport these materials should understand proper handling precautions and recommendations, as stated in the SDS (safety data sheets).