Use and Care Manual

Kryton, Krystol and KIM are trademarks of Kryton International Inc. ©2011 V. 2011- 0 8
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14
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2.11
(Formally known as Application Instruction 402)
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APPLICATION INSTRUCTION
2 of 3
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: Ensure that Krystol T1 and T2 is only applied to a damp (SSD) surface. As you apply the Krystol T1 and T2
coatings, you may need to rewet the concrete ahead of you to maintain a damp (SSD) surface. Failure to bring the surface
to an SSD condition will result in a weak bond between the Krystol coating and the concrete, and may lead to dusting,
aking and delamination of the Krystol treatment.
1. Mix Krystol T1 to a thick paste; approximately 3 parts powder to 1 part clean water. Mix only as much as can be
placed in 30 minutes.
2. Ensure the surface is damp (SSD).
3. With a concrete brush, use an aggressive, circular scrubbing motion to apply the Krystol T1 coating over the
concrete. Push the coating into any voids in the concrete surface to ensure a good bond. Apply at 0.8 kg/m
2
(1.5 lb./
sq. yd.).
: Make coverage estimation easy by laying pails of Krystol T1 in advance, one every 31 m2 or 330 sq ft.
4. Cure and protect, as in Step 4 below.
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: To ensure complete coverage with no missed or thin spots, we recommend that you always apply two coats. While it
is permissible to use Krystol T1 for both coats, using Krystol T2 for the second coat will give a harder, more durable nish.
Note that in certain cases it may be acceptable to use a single coat of Krystol T1 and eliminate the second coat. Consult
your Kryton representative for project specic recommendations.
1. The second coat can be applied as soon as the Krystol T1 has set hard (usually 6-24 hours depending on
conditions). Wash and rinse the hardened Krystol T1 to remove surface bloom before applying Krystol T2. Some
exposed aggregate in the Krystol T1 coating is ideal.
2. Ensure the hardened Krystol T1surface is damp (SSD).
3. Install Krystol T2 by following the same procedure used to install Krystol T1.
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: Krystol T1 and Krystol T2 must be kept damp and “wet cured” for at least 3 days to develop its full
properties. Curing for several days or even weeks will be benecial in most cases. Do not apply curing water if the coating
is still soft to the touch; this will wash out the coating and produce poor results. Instead, use protective surface coverings to
retain moisture during the initial hardening period.
1. Cover the freshly applied Krystol coating with tarps or plastic to prevent water loss due to evaporation. Wet curing
should begin as soon as the Krystol coating has hardened enough not to be damaged by the application of curing water,
usually 6-24 hours depending on conditions. Wet curing should also begin if the coating starts to dry out.
2. Do not allow water to pool on the surface during the rst 24 hours or until the coating is hard. Once the coating has
hardened, mist the surface with water as needed to keep the repair damp for 3 days. Curing water should be applied at
least three times each day for three days. More frequent application may be needed in hot, dry weather.
3. Keep protective coverings in place during the curing period to retain moisture. As the coating gains strength, thoroughly
soak the surface to keep the coating fully saturated
4. Protect the repair from frost, rain and trafc for at least 24 hours. Heavy trafc must be avoided during the curing period.
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• Each coat will be approximately 1 mm - 1.5 mm thick, and a two coat application will be 2 - 3 mm thick. Very rough
surfaces may require more material.
• Wait at least 7 days before lling treated tanks and reservoirs. For reservoirs that will contain drinking water, cure longer
if possible, and then rinse with fresh water several times. Initially, the drinking water may need pH adjustment using citric
acid or similar water treatment chemicals.
• Roughen Krystol T1 and Krystol T2 coating to remove loose surface particles before applying any further coating or
nish. Finishes containing Portland cement may be applied over Krystol T1 and T2 following the curing period. If paints
and coatings are used, they must be suitable for use on new concrete. Apply paints and coatings according to the
manufacturer’s instructions. Test coatings or other nishes for compatibility before completing the work.