3 x 3 mm & 4 x 4 mm Right Angle Triangle Solid Silicone Seal Strip

Product Overview

SealsHub supplies 3 x 3 mm and 4 x 4 mm right angle triangle solid silicone seal strips designed for compact sealing, cushioning and component protection applications where installation space is limited. The isosceles right triangle profile provides two equal leg surfaces and a stable triangular structure for precise positioning and contact support.

Made from solid silicone rubber, these small profile strips offer reliable elasticity, shape retention and long-term dimensional stability. Available in non-adhesive and adhesive-backed versions, they provide flexible installation solutions for small components, panels and compact assemblies.

Key Features

• Small right angle triangle profile for precision and space-limited installations
• Defined by equal leg dimensions for accurate profile selection
• Solid silicone construction provides stable elasticity and dimensional consistency
• Suitable for small gap filling, cushioning and component protection
• Compact design helps reduce installation space requirements
• Available with or without adhesive backing
• Custom sizes, colors and adhesive configurations available upon request

Specifications

Size Selection

Select the appropriate size according to the two equal leg lengths of the right angle triangle profile.

For example:

• 3 × 3 mm profile: two equal legs are 3 mm, with a hypotenuse of approximately 4.2 mm.
• 4 × 4 mm profile: two equal legs are 4 mm, with a hypotenuse of approximately 5.7 mm.

Small profiles are suitable for compact assemblies requiring light compression, cushioning and precise component contact.

Application

• Precision electronic equipment and small enclosures
• Compact panel and housing assemblies
• Small gap filling and contact cushioning
• Glass, metal and plastic component protection
• Lightweight vibration reduction applications
• Component positioning and support in limited spaces

Installation

Clean and dry the mounting surface before installation. Adhesive-backed versions can be applied directly after removing the release liner and pressing firmly into position.

For non-adhesive versions, suitable silicone adhesive, compression fitting or other fixing methods can be selected according to the application requirements.

Custom Options

Custom colors, lengths and profiles available upon request.

Custom dimensions, silicone hardness, adhesive placement and special triangle profile designs can be produced according to specific requirements

FAQ

Q: How is the size of a right angle triangle silicone seal strip defined?

A: The size is defined by the two equal leg lengths of the isosceles right triangle profile. For example, a 3 × 3 mm profile has two equal 3 mm legs, while the hypotenuse is determined by the triangle geometry.

Q: What are 3 x 3 mm and 4 x 4 mm silicone triangle strips used for?

A: These small profiles are suitable for compact sealing, cushioning, gap filling and component protection applications where installation space is limited.

Q: Can adhesive be added to these small silicone profiles?

A: Yes. Adhesive can be applied to selected triangle faces according to the required mounting method and contact surfaces.

Q: Are these solid silicone strips different from silicone sponge seals?

A: Yes. Solid silicone provides higher material density, stable support and better dimensional accuracy, while silicone sponge seals are softer and designed mainly for higher compression applications.