SikaCem®-100 PRO 350® may be applied using a roller, hand pump industrial sprayer, or airless sprayer.
If a roller is used, apply only enough material so it may be rolled before the sealer becomes tacky. Do not attempt to roll the material once it becomes tacky. Also, if using a roller, a non-shed solvent-resistant roller with 1/4-1/2 in. (6.4-12.7 mm) nap length is recommended. The nap length of the roller will depend on the surface porosity and texture of the concrete.
When using a sprayer, apply material with a fan pattern nozzle. Spray equipment should be clean and in good working condition. Sprayer seals must be solvent resistant. Hand pump sprayers must be capable of delivering moderately viscous liquids in thin, even layers. SikaCem®-100 PRO 350® shall be applied in two thin, even coats for best results. Care must be taken to protect adjacent areas from overspray.
New Concrete: Uncolored, Integrally Colored, Color Hardened
Apply SikaCem®-100 PRO 350® as a curing agent immediately following final finishing and after the slab is firm enough to walk on without damage. Do not apply if bleed water is present. Apply to vertical surfaces immediately following form removal. Avoid runs or puddles and over-application. A second application shall be performed at least two weeks after the cure coat application to achieve maximum sealing and dust-proofing benefits. Surfaces to be retreated should be dry and clean. Apply in a continuous wet surface film. Application of SikaCem®-100 PRO 350® over excessively smooth, hard-troweled surfaces may result in adhesion loss.
New Stamped, Textured, or Stenciled Concrete
After the concrete has been stamped using SikaColor®-300 Antiquing Release or SikaColor®-340 SG Antiquing Release, allow the concrete to cure for a minimum of 24 hours before the washing procedure begins. Thoroughly remove the residual release powder by washing and scrubbing. The concrete should be allowed to dry thoroughly before applying SikaCem®-100 PRO 350®. If SikaCem®-800 Clear Liquid Release is used, do not apply SikaCem®-100 PRO 350® until the surface has been washed and allowed to thoroughly dry. Consult most current SikaColor®-300 Antiquing Release, SikaColor®-340 SG Antiquing Release, and SikaCem®-800 Clear Liquid Release local Product Data Sheets for complete Application Instructions.
Existing Concrete
Adequately remove accumulations of grease, oil residue, incompatible curing or sealing compound residue, and other substances that would diminish adhesion. Wash surfaces thoroughly. Allow surface and joints to dry adequately before applying SikaCem®-100 PRO 350®. Very rough, porous, and deeply textured surfaces may require multiple applications to ensure the formation of a protective film without pinholes or holidays.
Do not apply sealers to concrete substrate with moisture levels > 6% mass (pbw – part by weight) as measured with Tramex® CME/CMExpert type concrete moisture meter.
Low Gloss Finish
SikaCem®-100 PRO 350® can be modified in the field to reduce the surface shine of the dried film with SikaCem®-100 Flattening Paste. Consult most current SikaCem®-100 Flattening Paste local Product Data Sheet for complete Application Instructions.
