Polyurethane
Multi-functional polyurethane material with excellent elasticity, wear resistance and aging resistance. Widely used for electronic potting, construction sealing, elastic flooring, foam crafts and waterproof coating.
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FAQs
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How is polyurethane different from epoxy resin?
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Polyurethane often cures with more flexibility, while epoxy usually provides harder and more rigid performance. Selection depends on movement, hardness and protection needs.
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Can PU resin be used for electronic potting?
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PU resin can protect electronic parts when flexible encapsulation, cushioning and moisture resistance are needed. Formula choice should match component sensitivity.
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What affects the hardness of cured polyurethane?
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Formula ratio, raw material type, curing conditions and filler content can affect hardness. Custom hardness helps match sealing, coating or casting needs.
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Can polyurethane resin support waterproof coatings?
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Suitable PU systems can form protective films that help resist water exposure. Film thickness, surface preparation and curing quality affect waterproof performance.
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Why is elasticity important in construction sealing?
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Building gaps and joints may move due to temperature change, load or vibration. Elastic cured material helps absorb movement and reduce cracking risk.
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Can polyurethane resin be used for foam crafts?
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PU systems can support foam craft applications when expansion, density and curing speed are controlled. Mold design affects final shape and surface texture.