Seal n Flex Sealant

Bostik Seal N Flex 1 is a low modulus, one component, Class-A polyurethane sealant.
When cured it will form a tough, flexible seal capable of cyclic expansion and compression
movement of 100% ( 50%) of the original installed joint width. It has excellent resistance to normal
weathering conditions such as rain, sunlight, snow, sleet, ozone, atmospheric contamination and
pollution. This ability enables it to retain its original properties after years of exposure, refer to the
CSIRO RILEM LONG- TERM SEALANT DURABILITY STUDY DBCE Doc. 97/196 (M)
Surface Application: Clean and dry all surfaces by removing foreign matter and contaminants such
as laitance, oil, dust, grease, frost, water, dirt, old sealants, curing agents and any protective coating.
Dust and loose particles should be vacuum cleaned. Priming of all surfaces is recommended to
achieve stated performance properties. DO NOT USE METHYLATED SPIRITS OR TURPS
Application Method: Bostik Seal-N- Flex 1 should be dispensed from either the cartridge or sausage
by means of a caulking gun (available from Bostik). Cartridge – Pierce the membrane at the top of the
cartridge and screw on the nozzle. Cut nozzle to give the required angle and bead size. Place the
cartridge in a Bostik applicator gun and squeeze the trigger. Sausages, a barrel gun is required; clip
the end of the sausage and place in barrel gun. Screw end cap and nozzle on to barrel gun. Using the
trigger extrude the sealant, to stop depress using the catch plate. Apply Bostik Seal N Flex 1 in a
continuous bead using enough pressure to properly fill the joint. Tool off the surface of sealant with
an appropriate sized spatula or trowel. Apply sufficient pressure to leave a smooth, consistent
surface and ensure maximum contact with the interface of the joint

JOINT SIZE (D x W)

6mm
x
5mm

10mm
x
10mm
10mm
x
20mm

300ml
cartridge 10 3 1.5
600ml
sausage 20 6 3

Coverage

The estimated lineal metre yield, per pack size, is recommended in the following table. No allowance has been made for waste or irregular joint geometry.

Colour

Range of 12 colours – Enquire within to confirm stocked colour

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