Arbosil LMS
Verified by manufacturer 22 hours ago
Arbosil LMS is a one-part neutral cure silicone sealant that cures on exposure to moisture vapor, forming an elastic silicone rubber. With excellent adhesion to a wide range of substrates.
Application
Main Applications
Perimeter sealing of PVC-U frames, perimeter sealing of PPC frames, movement joints in brickwork, glazing insulating glass units, remedial glazing. NB: not recommended for: overpainting Glass to glass butt joints as wall use against natural stone.
Application Instructions
Joint Preparation
The joint surfaces must be clean, dry and free from all contamination. The surfaces should be degreased using the appropriate ARBO® Cleaner. ARBO Primer 2650 is recommended on porous surfaces such as brickwork. ARBO Primer may be required on other substrates. Consult ARBO Technical Services for specific primer advice.
Joint Backing
Where applicable, use closed cell, cross-linked polyethylene foam. All joint preparation, priming, and sealant application should be carried out in accordance with BS8000-16:1997 + A1:2010 the British Standard for the sealing of joints in buildings using sealants.
Application Arbosil LMS is supplied in polyethylene 310 and 380ml cartridges and can be applied into the joint using an ARBO caulking gun.
Joint Size Suitability
Joint width
Minimum 6mm.
Maximum 25mm (single application); 50mm (multiple applications).
Joint depth
Minimum 10mm on porous substrates. Minimum 6mm on non-porous substrates.
Maximum 15mm
Packaging
25 x 310ml or 380ml Polyethylene cartridges per box. Polyethylene nozzles are included in each box.
Description
Arbosil LMS is a one-part Neutral Cure Silicone Sealant which cures on exposure to moisture vapour to form an elastic silicone rubber.
Skin Time at 20ºC at 65 % RH: 10-20 minutes
Application Temperature: + 5ºC to + 40ºC
Service Temperature: - 40ºC to + 120ºC
Typical Shore Hardness: 25-30
Cure Rate at 20ºC at 65% RH: 2mm/24 hours
Chemical Resistance: Resistant to most alkalis and dilute acids; organic solvents may cause the sealant to swell and lose adhesion.
UV Resistance: Very good
Service Life: 25 years +
Movement Accommodation: Butt joints (movement in tension and compression): 50 %.
Lap joints (movement in shear): 100 %
Colours:
White
Black
Grey
RAL 7016
RAL 7022
Light Grey
Anthracite
Brown
Buff
Dark Bronze
Portland
Rustic Red
Magnolia
Other colours are available subject to minimum quantities and lead times. Please contact ARBO Technical Services for further details.
Specification Compliance
BS EN ISO 11600 – F/G – 25 LM
BS 5889 Type A: 1989
General information
Color | Black Brown Bronze Grey Red |
Material | Silicone |
Shape | Formless |
Uniclass | |
CAWS | L10/75 Sealant joints L10/810 Sealant joints L20/80 Sealant joints L20/820 Sealant joints |
SKU Code | LMS |
Product range |
Specification data - Silicone construction joint sealants
Standard | To BS EN ISO 11600. |
Material | Neutral cure. |
Class | F-25LM. |
Colour | Black. Guidance for specification option: 310 ml. Brown. Guidance for specification option: 310 ml and 380 ml. Buff. Guidance for specification option: 380 ml. Dark bronze. Guidance for specification option: 310 ml. Grey. Guidance for specification option: 380 ml. Portland. Guidance for specification option: 380 ml. Rustic red. Guidance for specification option: 380 ml. Translucent. Guidance for specification option: 310 ml. White. Guidance for specification option: 310 ml and 380 ml. Magnolia. Guidance for specification option: 380 ml. Anthracite. Guidance for specification option: 380 ml. Light grey. Guidance for specification option: 380 ml. |
Accessories | None. Joint backing: Closed cell foam polyethylene rod. Joint backing: Fibre-board with bond breaker tape. Primer: Arbo Primer 2650. |
Application temperature | +5 to +50°C. |
Curing time | 7–14 days. Guidance for specification option: Depending on joint configuration and atmospheric conditions. |
Joint width | 6 mm (minimum); 25 mm (maximum); 50 mm (multiple applications). Guidance for specification option: Joint depth:
|
Type | A combined joint filler/ bond breaker, such as closed cell foam polyethylene rod, should always be used to ensure that the sealant adheres only to the joint faces and not to the back. Guidance for specification option: Bond breaker tape should be used where the joint has been packed out with fibre-board. |
Primer | A primer is not required for PVC-U surfaces. Manufacturer guidance
|
Capacity | 310 ml. 380 ml. Manufacturer guidance
|
Sustainability data
Material | Silicone |
Literature
ARBOSIL LMS Data Sheet