Nufins Uniseal 200/90 Coldpour
High performance, pitch free pavement sealant
Uniseal 200/90 Coldpour is a pitch free high performance two part elastomeric sealant specifically developed for sealing contraction and expansion joints in concrete paved areas, roads, bridge decks, airfield runways, taxiways, hard standings, fuelling areas, garage forecourts and transport depots. It is capable of accommodating above average movement and severe climatic conditions.
Standard Compliance: BS5212: 1990 Types N, F & FB and US. Fed Spec. SS-S-200E:1993. BS EN 14188-2.
Contains no pitch or tar.
Very high movement accommodation.
Resistant to oil, fuel, hydraulic fluids.
Tolerant to climatic conditions.
1:1 mixing ratio by volume.
Suitable for machine mixing and application
5 litre and 10 litre composite units or 200 litre individual units.
*Uniseal Primer P2 is available in 1 and 5 litre cans.
Preparation of Substrate: All joints should be dry, free from dirt, dust and grease. Cleaning should be carried out by wire brushing or grinding. Joint sides must be parallel and straight. Before positioning a bond breaker ensure that the expansion joint filler is tightly packed and no gaps or voids exist at the base of the slot to be sealed.
Priming All surfaces should have one coat of *Uniseal Primer P2 applied and allowed between 15 minutes and 2 hours to dry. The mixed Uniseal 200/90 Coldpour should be applied when the primer is tack free.
Add the entire contents of part B to part A and mix for a full 5 minutes using a slow speed drill with paddle type stirrer until a completely homogeneous mix is obtained. Mixing is made easier if Part B is added and mixed in two stages. Care should be taken to prevent unmixed material remaining on the sides of the container. The sealant is then applied to the prepared joint void to finish 5mm below the surface. Use of masking tape will help to obtain a clean finish. The sealant should not be applied at temperatures below 5o C. For aesthetic purposes very light tooling of the joint material as it gels releases surface bubbles and enhances appearance.
Please Note: If application of Uniseal 200/90 Coldpour is delayed for more than two hours after priming, joints should be re-primed.