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Premium Natural Stone Silicone

FA870 is a one component, low slump silicone completely free of any ingredients likely to cause migratory staining to natural stone. It is neutral curing for safe sealing of stonework and has a gloss finish. Contains fungicide. FA870 is classified according to ISO 11600 as F-20HM.


For Interior and Exterior

FA870 has been formulated for the long term elastic sealing of movement joints between natural stone such as granite, slate, terrazzo, porphyry, limestone, travertine, sandstone, quartzite, marble, etc., as well as for joints with other construction materials like concrete, ceramics, metals, glass, PVC and primed wood.

Formulated to prevent migratory staining of natural stone, FA870 has a traditional gloss finish and is available in 5 popular colours and translucent. Also available in FA880 matt finish.

  • Guaranteed no migratory staining of natural stone
  • Good resistance to UV light, ageing and weathering
  • Contains fungicide to prevent mould growth - suitable for sanitary & swimming pool surround applications
  • Rapid curing formulation - skins within 10 - 20 minutes
  • Chemically neutral, not corrosive and very low odour
  • Compatible with most construction materials
  • Also available in matt finish (FA880)
  • 5 colours and translucent


310 ml cartridge (12 per carton)

Guaranty / Warranty

Guaranteed no migratory staining of natural stone

Technical data

ClassificationEN 15651-1
EN 15651-3
Class 25 LM CC
StainingDIN ISO 16938No migratory staining
Specific GravityBS EN 1183-1B~1.0
Skin Formation+23°C, 50% RH15 minutes
Curing Rate+23°C, 50% RH~3.5 mm in 1st day
ShrinkageBS EN 10563~5%
Modulus at 100% ElongationBS EN 83390.5 N/mm²
Tensile StrengthBS EN 8339~0.6 N/mm²
Elastic Recovery at 60% ElongationBS EN 7389> 90%
Movement CapabilityISO 11600DIN EN ISO 11600-F-20HM
Shore A HardnessDIN 53505;
ISO 868
Application Temperature +5°C to +40°C
Service Temperature -40°C up to +150°C*
*Short Term
Storage Store in shaded dry conditions between +5°C and +25°C.
Shelf Life 18 months when stored as recommended in original unopened containers.
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