Product Data Sheet Show all documents
EVERBUILD® 503 Premium SBR Bond

EVERBUILD® 503 Premium SBR Bond

Latex Based Water resistant bonding agent, primer and admixture.

EVERBUILD® 503 Premium SBR Bond is a water resistant bonding agent and admixture for use in areas subject to humidity, dampness and water contact. Improves water resistance of cement mixtures by forming a reinforcing polymer that increases long term durability and flexibility of the mix on renderings and floor screeds. It contains anti-foam to control the density of cementitious mixes.

  • Greatly improved adhesion to a wide range of substrates including dense concrete, steel, tiles etc.
  • Mixes may be applied in thinner sections.
  • Excellent resistance to water and water vapour.
  • A high level of resistance to salt permeation.
  • Much improved toughness and flexibility.
  • Reduced surface dusting of concrete.
  • Greatly improved resistance to many chemicals- ideal for use in dairy parlours etc.
  • Reduced water: cement ratio for equivalent workability.
  • Improved frost resistance.
  • EVERBUILD® 503 Premium SBR Bond is also freeze thaw stable.
Viscosity 100 cPs (RVT 1/10 rpm) M.F.F.T 0 °C Freeze Thaw resistancePasses 5 cycles at -10 °C – excellentCalcium IonsCompatibleAluminium III IonsCompatibleAntioxidantAddedBiocideAdded
Product Data Sheet Show all documents

Usage

  • As an admixture for mortar/screeds/renders.
  • As a bonding agent for screeds/renders.
  • As a primer/sealer in tiling applications.
  • To Increase flexibility for cementitous based tile adhesive when tiling on wooden/asphalt floors.
  • In addition, EVERBUILD® 503 Premium SBR Bond is not adversely affected in wet conditions and is therefore recommended for exterior use, unlike most PVA bonding aids.
 

Advantages

  • Greatly improved adhesion to a wide range of substrates including dense concrete, steel, tiles etc.
  • Mixes may be applied in thinner sections.
  • Excellent resistance to water and water vapour.
  • A high level of resistance to salt permeation.
  • Much improved toughness and flexibility.
  • Reduced surface dusting of concrete.
  • Greatly improved resistance to many chemicals- ideal for use in dairy parlours etc.
  • Reduced water: cement ratio for equivalent workability.
  • Improved frost resistance.
  • EVERBUILD® 503 Premium SBR Bond is also freeze thaw stable.
Viscosity 100 cPs (RVT 1/10 rpm) M.F.F.T 0 °C Freeze Thaw resistancePasses 5 cycles at -10 °C – excellentCalcium IonsCompatibleAluminium III IonsCompatibleAntioxidantAddedBiocideAdded

Packaging

2.5 L, 5 L and 25 L Jerrycans and 1000 kg IBC.

Colour

White

Product Details

Product Information

Chemical Base

Aqueous styrene-butadiene emulsion polymer.

Shelf Life

 12 months from date of manufacture in original unopened containers.

Storage Conditions

EVERBUILD® 503 Premium SBR Bond is best stored at moderate 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.  EVERBUILD® 503 Premium SBR Bond should preferably be stirred before use.

Density

1.020 kg/L

Consistency

Liquid

Application

Consumption

Yield

As a rough guide, 1.2 litres of EVERBUILD® 503 Premium SBR Bond will cover 1 m² of 12 mm thickness using the below mixes.
Application steps

SUBSTRATE PREPARATION

All surfaces must be clean, dry and free from dust, grease and other contaminants.

The background must be capable of withstanding all stresses which will be put onto it and contain the appropriate joints.  If it is to receive a topping the background should have a compressive strength greater than 30 N/mm² and/or a tensile strength greater than 1 N/mm².

Floors should be mechanically prepared, e.g. scabbled or shot blasted, to give an aggregate exposed surface.  Dust should be removed by vacuum, not compressed air.  All contaminants such as oil, grease, or any surface laitence must be removed to ensure adequate development of bond when the topping is applied.  A water drop test is the simplest method to determine whether water repellent contamination is present.

MIXING

Mixing procedures for topping and screeds containing EVERBUILD® 503 Premium SBR Bond are similar to those used to conventional compositions, with gauging water partly replaced by EVERBUILD® 503 Premium SBR Bond.  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 EVERBUILD® 503 Premium SBR Bond, 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 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 Bond0.20.2 (ie. 10 L per 50 kg of cement)
WaterAs requiredAs required

All parts are by volume of uncompacted material.

CLEANING OF TOOLS

All tools should be cleaned immediately after use with water because hardened EVERBUILD® 503 Premium SBR Bond modified toppings and screeds have excellent adhesion and are therefore difficult to remove.  Solvents such as white spirit can be used with coarse wire wool help to remove partially hardened mortar.

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