Description

A flame retardant, non-corrosive, moisture curing, 100% silicone sealant designed specifically for weather sealing of Non-Combustible Cladding types in high rise structures, primarily around windows and in expansion joints. The excellent weathering and UV stability of Prosil 42FR provides long term performance and durability over many years where its superior physical properties are retained.

FEATURES & BENEFITS

Passed UL94 flammability test, class V-0 = Does not burn
100% silicone sealant = Extremely high UV stability
Outstanding durability = Up to 15 year warranty
No solvents or isocyanates = Safe for the applicator
High movement ± 50% = For all panel sizes

APPLICATIONS:

Prosil 42FR, with its fire retardancy, low VOC levels and high movement capability, has been designed for use in cladding and non-structural glazing applications where a safe, fast curing sealant that resists cracking and bubbling is required. It is ideal for use in ACP sealing applications or for the weather-sealing of high-rise buildings.

TECHNICAL

SPECIFICATIONS
Cure type	Neutral Cure (100%)
Skin Time	12 mins
Cure Time	2mm per day
Movement	+/- 50%
Hardness	30 Shore A
Operating Temp	-40°C to 140°C
Elongation	>550%
Uses	Internal / External

SUBSTRATES

PROSIL 42FR will have excellent adhesion to many substrates. Admil Adhesives always recommends to conduct “Pre-Adhesion” Tests on substrates to ensure adequate bond is achieved.

Glass
Aluminium
Galvanised steel
Concrete
Wood
Ceramics plastics
Most powder coatings
Fibreglass
Steel
Stainless steel
Zincalume
Fibre Cement
Composite Panels

SURFACE PREPARATION

All surfaces must be clean, dry, sound, and free from dust, oil, rust, or any other contamination.

Metals should be cleaned with a non-oily solvent soaked clean cloth, such as PROSIL CLEANER 1. Excess solvent should be wiped from the surface with a clean dry cloth. When used on remedial work all existing sealant must be removed. In some instances further cleaning or etching maybe required.