Haprez™ 3747

About
A high performance, room curing laminating system that is specifically formulated for use in automotive tooling aids, duplicates, Keller models, fixtures, spotting racks, foundry tools, and all other applications requiring laminates for use up to 245° F. Provides excellent wetting characteristics on fiberglass cloth, and its smooth handling and spreading quality make it quick and easy to use. Its low viscosity characteristics also enables hand application by brush, roller, squeegee, or conventional internal mix spraying equipment. Non-settling during storage and use, to yield completely uniform results with every use. It is also non-sagging to insure that the glass stays in place during fabrication and curing, and its long pot life characteristic enables continuous, non-stop laminating to any desired thickness. While yielding exceptionally high strength properties, HAPREZ 3747 is also a close tolerance system. Low shrinkage factors of 0.0005 per linear inch are customarily obtained with this system, making it ideal for close tolerance applications. May be used with any HAPCOAT system to provide a totally compatible laminate system.&&

Product Description
Generic热塑性聚酯
Material StatusCommercial: Active
FeaturesGood Rigidity,Low contractility,Quick wetting
AvailabilitysNorth America

Technical Data
PHYSICALNominal valueUnitTest method
Density1.30g/cm³

IMPACTNominal valueUnitTest method
Impact strength of cantilever beam notch25J/m

Thermosetting mixed viscosityNominal valueUnitTest method
24℃38000cP

Supplementary informationNominal valueUnitTest method
Curing time
21℃1.0day

MECHANICALNominal valueUnitTest method
Shore hardness
Shaw’s D, 25 ℃87 
tensile strength338MPa

THERMALNominal valueUnitTest method
Operating temperature118
Thermosetting components 
Component A按重量计算的混合比: 100 
Component B按重量计算的混合比: 16 
storage stability
25 ℃30 to 40min

Notes
1. Typical properties: these are not to be construed as specifications.
2. 12 Ply
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