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Tough Gels Overview

Features
Firm or tough, thermal/mechanical shock and vibration damping, primerless chemical adhesion at room temperature (except 3-4237 Dielectric Firm Gel which requires heat to develop chemical adhesion), excellent dielectric properties, flexible cure schedule, reversion resistant, thick section cure, compatible with automated dispensing equipment, and physical and electrical stability over a wide temperature range (-45 to 150°C/-49 to 302°F)

Potential Uses
Sealing and protecting, by coating, encapsulating, or potting, various electronic devices, especially those with a need for stronger adhesion or improved dimensional stability; 3-4237 Dielectric Firm Gel, with its exceptionally long working time, is especially suited for penetrating intricate parts

	Dow Corning® Brand Product		Description
	3-4207 Dielectric Tough Gel Kit		Two-part, fast RT or heat cure, translucent green, UV indicator, tough, primerless chemical adhesion, UL 94 V-1 flammability classification
	3-4222 Dielectric Firm Gel Kit		Two-part, fast RT or heat cure, translucent green, firm, primerless chemical adhesion
	3-4237 Dielectric Firm Gel Kit		Two-part, heat cure, translucent green, firm, exceptionally long working time, primerless chemical adhesion
	3-4241 Dielectric Tough Gel Kit		Two-part, RT or heat cure, translucent green, UV indicator, long working time, tough, primerless chemical adhesion, UL 94 V-1 flammability classification
	Sylgard® 528 Firm Gel Parts A & B		Two-part, heat cure, clear, firm gel

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Technical Data

Tutorial