Terrabond A is an extremely versatile bonding agents for use with all cementitious materials, lime washes, plasters, etc. It can be used to pre-treat substrates as an adhesion-promoting agent and as a primer/ sealer for decorative coatings.
Usage:
Terrabond A is used for pre-treatment of porous but firm surfaces of concrete, aerated concrete, plaster, screeds, as an adhesion-promoting and sealing agent.
Apply a solution of one part Terrabond A to 2 to 5 parts water (depending on surface porosity), using a brush or roller.
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Repairing surfaces:
For the repair of surfaces, Terrabond A is designed
to simplify the standard repair procedures and to
help form a strong bond between the new and
old work. Prior to application of repair mortar,
follow the preparation procedures as previously
outlined. For porous surfaces and repairs in
excess of 5mm deep, mix the cement mortar
using a solution of 1 part Terrabond A to 5 parts
water. For mortars to be applied less than 5 mm
thick use a 1:3 solution. For firm surfaces, a
solution of 1:10 is recommended.
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For plasters and screeds:
For plasters and screeds the addition of
Terrabond A increases adhesion, flexural strength
and improves workability of sand/cement mixes
to be applied on surfaces such as fairfaced or
float finished concrete. Prior to application,
preparation procedures should be followed.
Mix the mortar/screeds using a solution of 1 part
Terrabond A to 10 parts water. For thin-coat
mortar, a solution of 1:7 is recommended.
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For tile fixing:
For Tile fixing mortar, the addition of Terrabond A
will increase the flexibility and improve the
cohesive and adhesive properties of cementitious
tile mortars. When using a thick-bed tiling
method, mix the mortar adhesive using a solution
of one part Terrabond A to five parts water. With
thin-bed tiling methods a solution of 1:3 is
recommended.
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For cement based paints/lime washes:
For cement based paints/lime washes, the
addition of Terrabond A will increase flexibility
and resistance to moisture, saline encrustation
and dirt. The resultant mixture will promote
greater adhesive capabilities, improve dispersion
and aid brushability. Mix the paints using a
solution of one part Terrabond A to 5-10 parts
water.