SikaBond SBR Waterproof Bonding Agent and Admixture 5L

SikaBond SBR Waterproof Bonding Agent and Admixture 5L

SikaBond SBR+ is a one component, water based, general purpose, styrene butadiene rubber emulsion. When diluted with water it produces a gauging solution for improving adhesion, workability and waterproofing of mortars and cementitious mixes.

• Prevents bleeding


• Low water-cement ratio


• Greatly increased flexural & tensile strength


• Good frost, abrasion resistance and resistance to water-borne salt penetration


• Resistant to mineral oils and many chemicals


• Excellent adhesion to steel and concrete


• Sticks to brick, glass, asphalt, wood, expanded polystyrene and most other building materials


• Ideal for concrete strengthening and repair, floor screeds and toppings, waterproofing and tanking


• SikaBond SBR+ is a waterproof general purpose bonding agent and mortar mixture

MIXING

Mixing procedures for topping and screeds containing Sikabond® SBR are similar to those used to conventional compositions, with gauging water partly replaced by Sikabond® SBR. However, mixing time should be minimised to limit air entrainment. Mixing should be carried out in a forced action mixer. The usual procedure is to pre-mix sand and cement in the mixer, pour in the Sikabond® SBR, mix for 1 - 3 mins, then slowly add water to the required consistency. NB: Over-addition of water causes rapid thinning of Sikabond® SBR modified mortars owing to the plasticising effect of the Sikabond® SBR. The mix design depends upon thickness and intended use. However, typical mixes for a 12 mm topping or screed are as follows:

                                                  Screed        Topping

O.P.C                                              1                 1

Moist sand                                    3.5              1.75

3 mm Washed Granite                 0               1.75

SBR                                                 0.2              0.2
(ie. 10 L per 50 kg of cement)

Water                                   As required      As required

All parts are by volume of uncompacted material.