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Dow SYLGARD 186 Silicone Elastomer Clear 0.5 kg / 4 kg / 19.9 kg Kit

$156.45
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SKU: 186 ELAST PLASTIC .5KG KIT
California prop 65
Description
  • High-tear-strength protective coating. Dow SYLGARD 186 Silicone Elastomer Clear is a two-component, room-temperature and heat-curing encapsulant used as a protective coating for electrical applications such as power supplies, transformers, sensors, amplifiers, and connectors. It provides flexibility, high tear strength, and high viscosity at a 10:1 mix ratio.
  • Material behavior. When the two liquid components are thoroughly mixed, the mixture cures to a flexible elastomer well suited to protecting electrical and PCB assemblies. The 10:1 mix ratio provides latitude to tune the modulus and hardness to specific application needs and production lines, and the material's high tear strength makes cured parts robust and durable.
  • Cure and processing. SYLGARD 186 offers rapid, versatile cure processing controlled by temperature, curing at room temperature or faster with heat. Dow silicone elastomers of this type cure without exotherm at a constant rate regardless of section thickness or degree of confinement and require no post-cure, so parts can be placed in service immediately after the cure schedule.
  • Agency recognition. The product is UL tested and can be considered for uses that require UL compliance. Independent distributor data lists a UL 94 V-1 flammability rating and UL 746C recognition for the material; users needing formal agency approval should confirm the current listings for their specific grade and application.

Recommended For

  • Protective coating for electrical assemblies
  • Power supplies and transformers
  • Sensors, amplifiers, and connectors
  • Flexible substrates and demanding protection applications
  • Uses that may require UL consideration

Available Variants

  • 186 ELAST PLASTIC .5KG KIT — 0.5 kg kit
  • 186 ELAST PLASTIC 4KG KIT — 4 kg kit
  • 186 ELAST PLASTIC 19.9KG — 19.9 kg kit
  • All three variants are the same clear SYLGARD 186 two-part elastomer and differ only in kit size, from the 0.5 kg kit for small-scale or prototype work up to the 19.9 kg kit for higher-volume production.

Product Details

  • Product type: Two-part silicone elastomer / encapsulant
  • Color: Clear / translucent
  • Mix ratio: 10:1
  • Viscosity: High viscosity
  • Cure: Room temperature and heat cure
  • Key properties: Flexibility, high tear strength, UL tested
  • Container sizes: 0.5 kg, 4 kg, and 19.9 kg kits

Primary Industries

  • Electronics and PCB manufacturing
  • Power supply and transformer manufacturing
  • Sensor and connector manufacturing
  • Flexible electronics and research applications

Standards and Certifications

  • UL tested; UL 94 V-1 flammability rating and UL 746C recognition per independent distributor data (users should confirm the current agency listing for their grade)
Reviews

FAQs

What is SYLGARD 186 used for?

It is a two-part silicone elastomer used as a flexible protective coating and encapsulant for electrical assemblies, including power supplies, transformers, sensors, amplifiers, and connectors. Its high tear strength and flexibility make cured parts durable, and it is also used to form elastic substrates in flexible-electronics research.

What is special about its tear strength?

SYLGARD 186 is noted for high tear strength, which makes the cured elastomer resistant to tearing and mechanical damage. That toughness suits protective coatings and molds that must flex, stretch, or be handled repeatedly without failing, giving longer service life in demanding electrical and mechanical applications.

How is it mixed and cured?

It uses a 10:1 mix ratio and cures at room temperature or faster with heat, with cure controlled by temperature. Because it cures without exotherm at a constant rate regardless of thickness and needs no post-cure, parts can be placed in service immediately after completing the cure schedule.

Does the 10:1 ratio matter?

Yes. The 10:1 base-to-curing-agent ratio provides latitude to tune the cured material's modulus and hardness for specific applications and production lines. Accurate measurement of components helps ensure consistent, repeatable mechanical properties, so careful proportioning is important for reliable results across successive mixes.

Is SYLGARD 186 UL recognized?

It is UL-tested and can be considered for uses that require UL compliance. Independent distributor data lists a UL 94 V-1 flammability rating and UL 746C recognition. Because agency listings vary by grade and can change, users needing formal certification should confirm the current UL listing for their specific product.