
Flexseal PS660
High performance two component polysulphide civil sealant
Flexseal PS660 is a two-part polysulphide sealant which when mixed, cures to form a flexible rubber seal. It has good adhesion to concrete, stone, metals and many other common building substrates.

Downloads
Flexseal PS660_TDS_12.pdf
TDS
Flexseal PS660_MS_1.pdf
MS
Flexseal PS660 - Gun Grade - Polymer & Pigment_MSDS_0.pdf
SDS
Flexseal PS660 - Pouring & Gun Grades - Hardener_0.pdf
SDS
Flexseal PS660 - Pouring Grade - Polymer_MSDS_0.pdf
SDS
- Cold applied.
- Good adhesion to concrete, stone, metals and many other common building substrates.
- Available in two grades, gun and pouring grade.
- UV-resistant.
- High movement accommodation factor.
- High service life.
- Hydrocarbon resistant.
For sealing structural floor joints in various applications such as:
- Parapet wall joints.
- Joints in metal and concrete sea walls.
- Joints in water retaining structures (including potable water when using gun grade).
- Runway aprons and runways
- Road and tile joints.
- Structural Floor Joints.
- Expansion and construction joints.
- Joints in sewage treatment tanks and sewage treatment facilities.
Flexseal PS660 Gun Grade: 3.7 kg (2.5 litre packs) (includes base and curing agent)
Flexseal PS660 Pouring Grade: 3.7 kg (2.5 Litre packs) (includes base and curing agent). The curing agent is packaged separately within the can
Flexprime PS100: 0.46 kg (500 ml tin).
Flexseal PS660 and Flexsprime PS100 have a shelf life of 12 months from date of manufacture if stored at temperatures between 2⁰C and 35⁰C.
Flexprime PS100 approximately 125 metres/tin.
Gun Grade:
- BS EN ISO 11600 F 25 LM.
- BS 4254:1983.
- BS 6920:1996.
- ASTM C920, Type M, Grade NS, Class 25, Use NT, T2, I and M.
Pouring Grade:
- BS 5212:1990, Type FB (includes types N and F).
- ASTM C920, Type M, Grade P, Class 25, Use NT, T2, M.
- SS-S-200E, for bond to concrete after fuel immersion