Insert into a joint to control sealant depth and create a backstop to allow proper Depth of sealant ready for tooling,
Normal joint requirement 2 wide to 1 deep but check with silicone sealant litrature
Product Applications:
General Purpose Sealant backing
Together with Self-leveling sealant
Expansion joints
Irregular joints
Metal and pre-cast panels
Around perimeters of door and window frames,
Coping and glazing joints
Log Homes
Product Description:
Box of 20mm Round polyethylene foam joint filler and backing for sealants and acoustic applications
Compresses easily for accommodating joints of varying widths.
Does not stick to sealants.
Non-stick closed cell skin.
High moisture resistance.
Compatible with all know types of sealants
Controls depth of the sealant in proper relation to joint width
Provides backing against which the sealant is applied, forcing the sealant to the sides of the joint
Prevents 3-sided bonding, ensuring proper function of sealant
Choosing the correct size:
Select a backer-rod diameter that is approximately 15 to 25% larger than the width of the joint to give a firm base.
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