Bare-looking concrete: check its treatment history before coating

Recover the slab's history before calling it bare

For a Saskatoon warehouse, stockroom or commercial service area, start with the concrete placement records and the building's handover documents. Request the names of curing products, sealers and later surface treatments, together with the areas where they were used. Ask the original concrete contractor and the property manager for records already in their possession. Keep confirmed product names separate from recollections such as a clear liquid was sprayed.

A useful treatment map can be simple: receiving bay, storage aisle and utility room, each with a known product or an explicit unknown. Include later extensions and repairs rather than assuming that the whole floor received one treatment. This creates a specific estimating question. The contractor can identify which areas have supporting records and which need further assessment before a preparation price becomes firm.

Ask what the existing treatment means for the next coating

Sika's US guidance for Sikagard-1315 KNS describes a transparent curing and sealing product and says that surfaces receiving additional coatings need proper preparation. This illustrates the purchasing issue: a clear treatment can matter to a later finish. It does not identify what is on your floor, establish Canadian availability or prescribe preparation for another manufacturer's product.

Send the recovered information to the supplier responsible for the proposed coating system. Ask whether the identified treatment changes the preparation specification, whether further assessment is needed and who will provide that assessment. Do not ask staff to improvise solvent tests or grinding. A supplier's response should name the actual substrate history and proposed system rather than rely on a generic assurance that primer will take care of it.

Reference: Sika: Sikagard-1315 KNS limitations for subsequent coatings

Separate an unknown-treatment allowance from the coating price

Sika Canada's published Sikagard-62CA sheet lists curing compounds among substances to remove during preparation. The linked document is an older edition, so it is evidence of the compatibility issue, not the current specification for a purchase. Obtain the current Canadian documents for the selected system and have its supplier confirm the applicable requirements.

Compare quotations by asking what each preparation allowance assumes. Does it cover a known treatment across the full area, a preliminary investigation, or only ordinary cleaning of a presumed untreated floor? Require the proposal to explain how an unresolved finding changes the scope and when you will receive a revised price. Do not make a shutdown date unconditional while the substrate assumption remains unsettled.

Reference: Sika Canada: Sikagard-62CA preparation guidance, archived edition

Release the purchase against the resolved assumption

Consider an illustrative warehouse with placement records for the original storage floor but no records for a later loading-area addition. Keep the two areas separate in the proposal. Ask the responsible reviewer what evidence is needed for the addition and record whether it can proceed, needs assessment or requires a revised preparation scope. Do not transfer a conclusion from the documented area simply because both surfaces look alike.

Retain the treatment map, supplier response and accepted preparation scope with the final floor documents. Moisture suitability, operating exposures and return to use remain separate questions; a resolved treatment history does not settle them. Bring these records to an industrial coating scope discussion with PainterzRus and confirm the required assessment responsibilities. This guide supplies a buying framework, not an installation method or a claim of specialist testing capability.

Can a clean-looking floor be treated as untreated concrete?

Appearance alone is not enough to establish its history. Recover available records and ask the responsible supplier or contractor to resolve unknown treatments in the preparation proposal. Keep that decision separate from the floor's moisture assessment.

Put the planning into practice

Download the free quote comparison kit to compare the work behind each price, or build your commercial project brief before requesting an estimate. No email required to use either tool.

Discuss your commercial project

For warehouse or light-industrial work, explore the access, surface-condition and downtime questions covered by our industrial and warehouse coating planning service.

Have a location and a rough scope? Request a commercial painting quote with the details you have. Access, timing and project requirements can then be reviewed for your property.