Horizontal trafficable Joints, airport runways, car park, roads and culverts
Wherever a permanently flexible horizontal seal is required
Characteristics:
Easy to use
Economical
Good UV resistance & weatherability
Excellent adhesion with many materials
Good chemical resistance (alkalies & dilute acids, petrol, diesel or jet fuel and many solvent and vegetable oils)
Permanently elastic
Storage Conditions Shelf-Life:
12 months from the date of production when stored properly in unopened undamaged and sealed original packaging in cool and dry condition at temperature +5 deg C to +30 deg C
Substrate Quality:
All surfaces must be clean, dry free any loosely adhering particles
Substrate Preparation:
Check the joints edges for soundness and if found weak cut recess and fill up with suitable repair mortar ( Consult Sika Technical services ).
Correct joint depth can be established by inserting polyethylene based Sika® Backer Material tightly into the joint.
When the joints have been filled with fibre filled board, this must be raked back to the required depth.
Use bond breaker tape over the backer material.
Protect surfaces with masking tape.
Priming:
Sika primer-80 should used as a primer only on the two sides. wait for 30 mins.
Application Method/Tools:
Where required, protect the surface with masking tape
Install the sealant into the joint without trapping air
Tool-off with a spatula to lightly concave profile
Remove masking tape
Cleaning of Tools:
Clean all tools and application equipment with Sika® Colma Cleaner immediately after use
Hardened / cured material can only be mechanically removed.
Note on Applictions/ Limitations:
Do not use in contact with drinking water or food
Gun grade Sikis? Polysulphide PG is gun-applied - 2 part polysulphide sealant which is used both for horizontal and vertical joints
Pourable grade Sika® Polysulphide PG is used only in case of horizontal joints.
TECHSEAL RDL – 940 / 941 are two component sealantbased on 'THIOKOL' -Polysulphide liquid elastomer. It consists of a 'base' compound & 'accelerator' (curing agent). ... It consists of a 'base' compound & 'accelerator' (curing agent).
