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Loctite Stycast 4640 Silicone Encapsulant & Catalyst 50-2 500gm Kit

Loctite Stycast 4640 Silicone Encapsulant & Catalyst 50-2 500gm Kit
Loctite STYCAST 4640 is a RTV condensation cure, silicone rubber syntactic foam. Supplied is a 500gm kit. 
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£261.85 excl VAT
(£314.22 Inc VAT)
1 In Stock
Bulk discounts
£261.85 + VAT
£248.76 + VAT
£242.21 + VAT
£235.67 + VAT

Product Information

Loctite STYCAST 4640 yields a flexible, low density material having a low dielectric constant and dissipation factor. STYCAST 4640 is readily pourable and is room temperature curable. STYCAST 4640 is designed for airborne potting, sealing or caulking applications which require low weight and excellent dielectric properties.


  • Lightweight 
  • High temperature resistance 
  • Low added weight for airborne applications
  • Casting can survive severe environmental conditions 


  • Loctite Stycast 4640
  • Silicone Encapsulant with Catalyst
  • 50-2 500gm Kit

Specifications and Information

Technical Information

£261.85 excl VAT
(£314.22 Inc VAT)
1 In Stock
Product Code
Commodity Code
Country Of Origin
UN Number
UN2788 CL6.1 III

Document Downloads

Sil-Mid Limited DO NOT GUARANTEE that the information in these documents is the most up to date information available from the manufacturer, there are times when updated information is released and we are not made aware immediately.

Delivery information

Orders over £100 placed online will now qualify for FREE UK Mainland delivery*

Orders under £100 placed online for UK Mainland delivery is £8.95*

**Orders requiring Pre 10.00am Next Day delivery has also been lowered from £35.00 to £21.00, orders placed through the office will incur additional charges.** 

International delivery (door to door delivery) is available for selected countries worldwide. Shipping will be automatically calculated based on the weight, location and hazardous nature of the goods. Customers can also choose ex works to arrange their own collection.

Please refer to our delivery page for more information.