ELASTOSIL® RT 675 A/B

Chemical Family: Silicones

ELASTOSIL® RT 675 A/B is a pourable, addition-curing RTV-2 silicone rubber with a two-part formulation and a 1:1 mixing ratio. It features a very high hardness (Shore A) and excellent heat stability. This silicone rubber is particularly known for its high thermal conductivity, making it ideal for the encapsulation of electronic components.

Product families

Ready-to-Use Products — Adhesives & Sealants

Encapsulants

Other characteristics

Brand: ELASTOSIL® RT
Cure Method: Air Dry, Chemical Cure
Product Type: 2K (2 component) Sealant, Encapsulant, Potting Compound; 2K (2 component) Sealant; Encapsulant; Potting Compound
Application Area: Batteries
Note: Cured for 30 min at 150 °C in a circulating air oven for cured properties.
Markets: Electrical & Electronics
Properties: Two-part, 1 : 1 mixing ratio
Very high hardness shore A
Excellent heat stability
High termal conductivity
Cure: Air Dry
Chemical Cure
Technology: Ready-to-Use Products
Special Features: Addition Curing
Flowable
Thermally conductive
Two-component

Technical data

Table 1 of 3

4 rows

Characteristic	Value	Unit	Method
Dynamic Viscosity (A+B, of mix)	50000	mPa·s	ISO 3219
Mix Ratio (A:B)	1:1	parts by weight	—
Platinum Catalyst in Component (A+B)	Component A	—	—
Pot Life (A+B, at 23°C)	150	minutes	DIN EN ISO 2555

Table 2 of 3

6 rows

Characteristic	Value	Unit	Method
Density (at 23°C)	2.3	g/cm³	DIN EN ISO 1183-1 A
Elongation (at break)	20	%	ISO 37 Type 1
Permittivity	5	—	IEC 62631-2-1
Shore Hardness A	80	—	DIN ISO 48-4
Tensile Strength	2	N/mm²	ISO 37 Type 1
Volume Resistivity	10¹⁵	Ohm-cm	IEC 62631-3-1

Table 3 of 3