MPN

Acc Silicones QSIL-553 Grey Potting Compound Silicone 250 g

RS Stock No.:: 283-460
Mfr. Part No.:: QSIL-553
Brand:: Acc Silicones

Acc Silicones QSIL-553 Grey Potting Compound Silicone 250 g

Bulk discount available

Subtotal (1 unit)*

£63.03

(exc. VAT)

£75.64

(inc. VAT)

FREE delivery for orders over £50.00

Temporarily out of stock

138 unit(s) shipping from 10 April 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 - 5	£63.03
6 - 14	£60.52
15 +	£59.26

*price indicative

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RS Stock No.:: 283-460
Mfr. Part No.:: QSIL-553
Brand:: Acc Silicones

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Acc Silicones
	Product Type	Potting Compound
	Trade Name	QSil 553
	Product Form	Liquid
	Package Type	Dual Cartridge
	Package Size	250 g
	Cure Time	24 h
	Thermal Conductivity	0.68W/mK
	Colour	Grey
	Minimum Operating Temperature	-55°C
	Mixing Ratio	1:1
	Maximum Operating Temperature	260°C
	Standards/Approvals	RoHS, UL
	Specific Gravity	1.60
	Base Chemical	Silicone

	Select all
	Brand Acc Silicones
	Product Type Potting Compound
	Trade Name QSil 553
	Product Form Liquid
	Package Type Dual Cartridge
	Package Size 250 g
	Cure Time 24 h
	Thermal Conductivity 0.68W/mK
	Colour Grey
	Minimum Operating Temperature -55°C
	Mixing Ratio 1:1
	Maximum Operating Temperature 260°C
	Standards/Approvals RoHS, UL
	Specific Gravity 1.60
	Base Chemical Silicone

COO (Country of Origin):: US

ACC Silicones Silicone Encapsulant Twin Pack Sachet

The ACC Silicones 250g silicone encapsulant twin pack sachet is a two-component, addition-cure, thermally conductive silicone elastomer system. This fully cured elastomer offers good protection against shock, vibration and environmental contamination. The twin pack sachet provides fast, clean mixing without the need to weigh or measure the A/B components or use external mixing equipment. It is specially designed for electronic assembly potting applications.

Features and Benefits

Two colours assist mixing

Moderately low viscosity

Long pot life

Fast cure at elevated temperature

Thermally conductive rubber

Non-corrosive

Easily repaired

Cure time is 24 hours

Thermal conductivity is 0.68W/mK

Hardness is 32 shore A

Operating temperature ranges between -55⁰C and 260⁰C

Certifications

UL 94 approved

ANSI/ESD S20.20:2014

BS EN 61340-5-1:2007