Product Data Sheet Show all documents

EVERBUILD® 501 Universal PVA Bond

A general purpose bonding agent, primer, sealer and admixture.

EVERBUILD® 501 Universal PVA Bond is a medium viscosity, polyvinyl alcohol stabilized, externally plasticised, vinyl acetate homopolymer. Contains no harmful phthalates. It has been designed specifically for use in the building industry as a general purpose bonding agent, and additive for concrete and plasters and as a multi-use adhesive.

  • Greatly improved adhesion to a wide range of substrates including dense concrete, glass, steel, tiles etc.
  • Mixes may be applied in much thinner sections with improved resistance to salt permeation.
  • Reduced surface dusting of concrete.
  • Improves flexibility of sand cement products.
  • Reduced water: cement ratio for equivalent workability.
  • Improved frost resistance.
  • Reduces surface porosity of mortar/plaster
Total Solids 32 - 37% Viscosity @ 23°C Brookfield RTV 5/20 7000 - 15000 cps @  23°C -25°C Minimum Film Forming Temperature (°C) -2°C to +5°C High Temperature Stability (1 Week @ 50°C)Stable
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Product Data Sheet Show all documents

Usage

  • As a general purpose adhesive for wood, cork, paper, textiles etc.
  • As an admixture for mortar/screeds/renders.
  • As a bonding agent for screeds/renders to difficult substrates.
  • As a primer/sealer in tiling applications.
  • As an internal filler when mixed with wood shavings, plaster etc.
  • EVERBUILD® 501 Universal PVA Bond can be used to stick paper, cardboard and other similar porous substrates.
 

Advantages

  • Greatly improved adhesion to a wide range of substrates including dense concrete, glass, steel, tiles etc.
  • Mixes may be applied in much thinner sections with improved resistance to salt permeation.
  • Reduced surface dusting of concrete.
  • Improves flexibility of sand cement products.
  • Reduced water: cement ratio for equivalent workability.
  • Improved frost resistance.
  • Reduces surface porosity of mortar/plaster
Total Solids 32 - 37% Viscosity @ 23°C Brookfield RTV 5/20 7000 - 15000 cps @  23°C -25°C Minimum Film Forming Temperature (°C) -2°C to +5°C High Temperature Stability (1 Week @ 50°C)Stable

Packaging

1ltr, 2.5ltr, 5ltr and 25ltr - Jerry Can

500ml - Plastic Bottle.

1000ltr - IBC

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

EVERBUILD® 501 Universal PVA Bond meets the bond strength requirements of BS5270, "Polyvinyl acetate (PVAC) emulsion bonding agents for internal use with gypsum building plasters".
Product Information

Shelf Life

12 Months from date of manufacture in original unopened containers.

Storage Conditions

To ensure safe storage of EVERBUILD® 501 Universal PVA Bond, containers should be well sealed to prevent evaporation of water and the formation of skin on the surface.  The emulsion must be stored at a temperature above freezing.  Storage temperature of 5°C - 25°C is recommended. Higher temperatures will affect quality and cause the formation of crusts and skins, especially if the containers are not tightly closed or subjected to direct sunlight for long periods.

EVERBUILD® 501 Universal PVA Bond exhibits excellent stability at high storage temperatures.  After 1 weeks storage at 50°C no significant changes in viscosity were observed.

Density

ca. 1.07 g/cm3

pH-Value

4 - 6

Application

Application steps

APPLICATION INSTRUCTIONS

Surface Preparation

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

PRIMING AND SEALING

Where the emulsion is to be used on porous substrates (old concrete, plaster, plasterboard etc.), it should be diluted 4 parts water : 1 part emulsion to seal the surface in preparation for further coating.

BONDING

EVERBUILD® 501 Universal PVA Bond can be used to bond plaster and cement renders/repair compounds.

To bond plaster, the emulsion should be used undiluted and brushed onto the surface to be plastered.  Fresh plaster should be applied before the emulsion dries.

The bond strength of the plaster to the substrate meets the requirements outlined in BS5270 (Plaster bonded to glass).

To bond cementitious renders or repair compounds, two methods of use can be considered.

i)  Small areas:- mix EVERBUILD® 501 Universal PVA Bond with an equal amount of water and add this to the mortar/concrete mix (the emulsion exhibits excellent compatibility with cement).

When added to a concrete/mortar mix, EVERBUILD® 501 Universal PVA Bond will improve adhesion and also flexural strength of the cured concrete in a similar way to conventional PVA bonding agents.

ii) Larger areas:- dilute the emulsion, 3 parts emulsion : 1 part water and brush onto the surface to be coated/repaired.  Apply a normal concrete mix before the emulsion dries.

WOODWORKING

EVERBUILD® 501 Universal PVA Bond will bond wood in similar fashion to conventional bonding agents.

The emulsion should be used neat in woodworking applications. In laboratory test, wood failure was observed in joints constructed with EVERBUILD® 501 Universal PVA Bond.

In common with conventional PVA bonding agents, EVERBUILD® 501 Universal PVA Bond should not be used for load bearing applications. 

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