SikaBond SBR+ is a one component, water-based, general purpose styrene butadiene rubber emulsion bonding agent and mortar admixture for improving adhesion, workability and waterproofing of mortars.
* Needs to be part of a pallet, 1/2 or 3/4 of Sika / Everbuild / Feb to checkout
£54.90 +VAT
SikaBond SBR+ is a white liquid, which has numerous uses as an admixture, primer, bonding agent and sealer. Polymer emulsions of this type have been used extensively over the last 20 years by the building industry as an admixture for cement and concrete applications, including repair and renovation, surfacing of floors and bonding generally. It contains anti-foam to control the density of cementitious mixes.
| Total solids | ca. 40% |
| Viscosity | less than 100 cPs |
| M.F.F.T | 0°C |
| Freeze/thaw | passes 5 cycles at -15°C to +20°C |
| Calcium Ions | Compatible |
| Aluminium III ions | Compatible |
| Antioxidant | Added |
| Bactericide | Added |
| Packaging | 5L & 25L jerry cans |
| Shelf Life | 12 months in original unopened containers. |
| Storage Conditions | SikaBond SBR+ is best stored at moderate (5 - 30°C) temperatures to avoid the possibility of permanent damage occurring due to prolonged heat or excessive cold. However if frozen, the latex should be thawed slowly. SikaBond® BR+ should preferably be stirred before use. SikaBond SBR+ contains sufficient bactericide to preserve the latex under normal storage conditions. |
| Density | ca. 1.02 kg/Itr |
| pH-Value | ca. 9 |
All surfaces must be clean, dry and free from dust, grease and other contaminents.
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 latex modified mortars owing to the plasticising effect of the latex. The mix design depends upon thickness and intended use. However, typically mixes for a 12mm topping or screed are as follows:
| FORM: | Powder |
| COLOUR: | Buff/Grey |
| HAZARD INFORMATION: | Consult Safety Datasheet before use |
| CLEANING: | Clean tools, equipment etc. using warm water. Mechanical means are necessary when the product has set. |
| PACKAGING: | 20kg multiwall, sealed paper sacks |
| STORAGE CONDITIONS: | Store in sealed containers in dry conditions, protected from extremes of temperature |
| SHELF LIFE: | 6 months in unopened manufacturer's packaging |
All parts are by volume of uncompacted material.
Application of a primer coat is necessary to obtain maximum adhesion of the topping or screed.
This concerns the use of SikaBond SBR+ in screeds and toppings over background concrete. Adding SikaBond SBR+ to a floor screed or topping gives the following advantages:
To obtain maximum performance from mixes modified with SikaBond SBR+ it is important that attention is paid to the quality of the other materials used. Sand should be well washed and sharp. The grade of sand will depend upon the mix design.
Cement Portland, High Alumina and sulphate resisting cements are compatible with SBR Bond. Portland cement should be fresh but cool. Cement containing air set lumps should not be used. Coarse aggregate e.g.
Granite chippings. These should be dust free. Air entraining agents should not be used.
POT LIFE
The mix has a pot life of approximately 30 minutes and batch size should be calculated accordingly.
APPLICATION
All tools should be cleaned immediately after use with water because hardened SikaBond SBR+ modified toppings and screeds have excellent adhesion and are therefore difficult to remove. Once dried use solvents such as white spirit with a coarse wire brush.
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