surface
etch
Horizontal
surface retarder with membrane for perfect exposed aggregate flatwork
Surface Etch
Retarder is a ready to use, water based blue liquid
which reveals aggregate in fresh placed concrete by delaying the
surface set on flat surface, so that the mortar paste may be brushed
and washed away from between the aggregate particles to produce an
attractive exposed aggregate finish.
Specially
formulated to make it easy and safe to use with perfect
results every time you pour flatwork, unlike those traditional
retarders. We've formulated an impervious membrane into our
horizontal retarder, this prevents surface dehydration allowing
you to get a cleaner wash, No cement on stones, easy washing and
Perfect results without the need to cover with plastic,
preventing damage. Surface Etch is available in 4 Liter, 20 Liter and
205 Liter pails
TECHNICAL
DATA
Appearance - Blue liquid
Specific gravity - 0.98
Viscosity - Sprayable with normal spray
equipment.
Totally environmentally Friendly
Surface Etch
Retarder is Non staining, Non corrosive and Non flammable. Safe
and easy to use, with guaranteed results. Surface Etch
will retard the set of the surface cement normally 12 - 48 hours when
applied as directed. The setting time will be influenced by air
temperature, cement type, content and slump. If the surface is not
washed off within 24-48 hours the surface concrete will set and reach
full strength. A trial run is recommended before general application
to determine timing and the depth of etch required.
INSTRUCTIONS
FOR USE
Surface
Etch Agitate Retarder thoroughly before use.
Place concrete in formwork or area of flatwork to be poured (3
parts cement, 4 parts sand, 6 parts aggregate by volume is a typical
mix) screed flat and darby or bull float flatwork. Using a low
pressure sprayer, spray affected areas once placed being sure not to
miss any areas. Because Surface Etch has a membrane there is no need
to cover with plastic unless weather dictates. Within 4 - 24 hours
after application proceed to remove retarded horizontal
layer of mortar with a stiff broom and garden hose water, leaving a
clean exposed aggregate surface. If extremely small aggregate is used,
it is important not to start the wash off too early, as bare spots may
be created.
PACKAGING
Surface
Etch Retarder is packed in 4
litre bottles - 20 litre plastic pails - 205 litre drums
STORAGE
Surface
Etch Retarder has a shelf life of 12 months once opened.
PRECAUTIONS
Surface
Etch Retarder is non-toxic and non-corrosive. If splashed
into the eyes, wash eyes with copious amounts of clean water
immediately and seek medical attention. If ingested drink plenty of
water and seek medical attention.
The above information is based on
our best knowledge and we believe it to be true and accurate, however,
due to the variable nature of application the suitability of the product
for the use intended is the sole responsibility of the user.
