Does an existing floor coating always need to be removed?
No. A sound, well-bonded and compatible resin floor may sometimes be cleaned, degreased, mechanically abraded and recoated. Loose, peeling, contaminated, incompatible or moisture-affected flooring generally requires more extensive removal.
How do you determine whether a coating can be recoated?
The existing floor should be assessed for adhesion, hardness, contamination, wear, compatibility and underlying concrete conditions. Test areas or adhesion testing may be considered when the coating history is unknown. Appearance alone does not confirm whether the floor is a suitable substrate.
How are old floor coatings removed?
Removal methods may include diamond grinding, shot blasting, scraping, scarifying or other mechanical equipment. The method depends on the coating chemistry, thickness, hardness, adhesion and condition of the underlying concrete.
Can Topseal remove thick epoxy mortar or urethane cement?
Thick mortar and resurfacing systems can be removed, but they generally require more aggressive equipment, labour and disposal than thin coatings. Removal may also affect the profile of the concrete and reveal areas requiring patching before the replacement floor is installed.
Why do epoxy floor coatings peel?
Peeling can result from inadequate surface preparation, weak concrete, contamination, moisture, incompatible materials, missed recoat windows or a coating not suited to the environment. The cause should be investigated before another system is installed.
What causes bubbles or blisters in a floor coating?
Blisters may be associated with moisture vapour, contamination, trapped air, outgassing, mixing or application conditions. Localized blisters can sometimes be removed and repaired, while widespread failure may require full removal and a revised system.
Can only the damaged areas be repaired?
Localized repairs may be possible when the surrounding flooring is sound. However, patched areas may remain visually noticeable, and a complete topcoat may be needed to create a more uniform appearance. Widespread loss of adhesion generally cannot be solved with isolated patches.
Can a new coating be applied directly over old epoxy?
Only when the old epoxy is sound, compatible and properly prepared. The surface normally needs cleaning, degreasing and mechanical abrasion to remove gloss and establish adhesion. The new product’s recoat and compatibility requirements must also be followed.
What happens if removal exposes damaged concrete?
Cracks, spalls, holes, weak concrete and damaged joints should be evaluated and repaired before the replacement coating is installed. Significant moisture, contamination or movement may require additional testing or a different flooring strategy.
Should the concrete be tested for moisture?
Moisture testing may be recommended when the old flooring shows blistering, debonding or other moisture-related symptoms, or when the replacement system has specific slab-moisture limits. A compatible moisture-mitigation system may be required when conditions exceed those limits.
Can recoating change the colour or texture of a floor?
Yes. Recoating can update colour, gloss, aggregate texture, line markings and designated work or pedestrian areas. The finish should still be selected around cleaning, traction, traffic and exposure rather than appearance alone.
Can any floor coating be used as the replacement?
No. The replacement chemistry and thickness should reflect the substrate, traffic, impact, chemicals, temperature, sunlight, cleaning and available downtime. Repeating the original system without addressing why it failed may produce the same result.
How long does floor coating removal and restoration take?
The schedule depends on the floor area, coating thickness, adhesion, removal method, repairs, contamination, moisture conditions and replacement system. Large commercial and industrial projects may be completed in phases where access and operations allow.
Where does Topseal provide floor restoration?
Topseal provides coating removal, recoating and floor restoration throughout Vancouver Island, including Victoria, Duncan, the Cowichan Valley, Nanaimo, Parksville, Qualicum Beach, the Oceanside Region, Courtenay, Comox, the Comox Valley and Campbell River.