3M Flexible Potting and Encapsulating Compound, 426g Package size, 36 kV/mm Dielectric Strength - Resin bag Scotchcast 40 426 g

This flexible potting and encapsulating compound is a specially designed polyurethane resin that cures at room temperature. With a capacity of 426 g, it serves effectively in electrical insulation and mechanical protection for low voltage electrical joints, making it suitable for both indoor and outdoor use, including underground and submerged applications.

Features & Benefits

• Provides excellent adhesion to various metals and plastics
• Hydrophobic behaviour enhances moisture resistance during curing
• Low exothermic reaction temperature prevents component damage
• High dielectric strength ensures reliable electrical insulation
• Strong impact resistance contributes to durability over time
• Closed Mix and Pour Delivery System simplifies application process

Applications

• Used for electrical insulation in low voltage systems
• Ideal for mechanical protection of cable joints
• Suitable for underground and submerged installations
• Employed in both indoor and outdoor environments
• Enhances durability and moisture resistance in adverse conditions

What is the curing time for the resin under different temperatures?

At 5 °C, the pot life is approximately 35 minutes, reducing to 18 minutes at 23 °C and just 9 minutes at 40 °C, ensuring quick application in various conditions.

How does the hydrophobic behaviour of the resin benefit its performance?

The hydrophobic behaviour during the curing stage minimises moisture absorption, which enhances the longevity and performance of the encapsulated components in damp environments.

What is the significance of the dielectric strength rating in this application?

The dielectric strength of 36 kV/mm indicates the resin's ability to withstand high voltage levels without failure, providing essential protection for electrical components against breakdown and short circuits.

What are the implications of the resin's volume shrinkage?

With a volume shrinkage of only 3.4%, the resin maintains a secure encapsulation of joints and components, reducing the risk of gaps that could lead to moisture ingress or contamination over time.

How should I store the resin to ensure optimal shelf life?

To maintain its integrity, the resin should be stored in sealed packaging at temperatures between 10 °C and 40 °C, with humidity levels below 75% for a shelf life of at least 36 months.

Units	Per unit
1 - 5	£54.46
6 - 11	£53.36
12 +	£51.19

Select all	Attribute	Value
	Brand	3M
	Trade Name	Scotchcast 40
	Package Size	426 g
	Hardness	56 Shore D
	Dielectric Strength	36kV/mm
	Viscosity Measurement	210 (Part B) mPa/s, 1014 (Part A) mPa/s
	Physical Form	Liquid

	Select all
	Brand 3M
	Trade Name Scotchcast 40
	Package Size 426 g
	Hardness 56 Shore D
	Dielectric Strength 36kV/mm
	Viscosity Measurement 210 (Part B) mPa/s, 1014 (Part A) mPa/s
	Physical Form Liquid

3M Resin bag Scotchcast 40 426 g Flexible Potting and Encapsulating Compound 426 g

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