Liquid Membrane Extra Color Pigment "Color Activator"

Name: Liquid Membrane Extra Color Pigment "Color Activator"
Brand: semcoworks
SKU: SLM1GPIWH
Price: 37.0 CAD
Availability: InStock
Rating: 4.79 (1113 reviews)

SEMCO Liquid Membrane Roof Waterproofing Application

Additional Color Pigment can help you to get a more consistent color coat with our SEMCO Liquid Membrane™. As it is, SEMCO Liquid Membrane™ is slightly translucent in order to see the substrate underneath it while protecting and waterproofing the substrate at the same time. Due to the additional color pigments, coverage may vary depending on porosity of substrate.

The full version

Detailed application instructions.

Pick your project. Every step, with the detail you’ll want while you’re actually doing it.

01 Drain, strip and dry

Drain fully. Check with a pool professional first if your water table is high — an empty shell can float.
Remove failed plaster, chalking gelcoat or any coating that is letting go.
Let the shell dry out properly. Days, not hours.

New shellsNewly poured gunite should cure about a month before you coat it.

02 Clean and reinforce

You’ll need: Nu-Lift Cleaner · Stone Soap · Fabric Reinforcement

Apply Nu-Lift Cleaner to lift scale, waterline deposits and calcium. Rinse.
Follow with Stone Soap to clear the residue and rebalance the surface pH. Rinse again.
Coat cracks over ¼" and the floor-to-wall cove, lay in Fabric Reinforcement, wait 10–15 minutes, coat over it.
Let everything dry before the field coats.

Fittings and penetrationsTreat around returns, skimmer throats, main drains and light niches the same way you treat a crack.

03 Three coats with Color Activator

Each coat: 15–20 mil. Keep every coat in that range — thicker traps moisture and stays tacky, thinner leaves the membrane short of waterproof.

Stir the membrane well, then mix in one Color Activator per container — matched to the same size and color.
Roller on the flat, brush into the cove, corners and around fittings.
Recoat when it holds no fingerprint. Three thin coats, not thick ones.
Inspect for pinholes and thin spots before you stop — on a shell this size one missed patch is the leak.

Thin coats, not thick onesThick coats trap moisture and stay tacky instead of curing — and on a pool that means starting again.

04 Cure, fill, then balance

Initial cure is at least 7 days, and longer if the coats went on thick or the air is humid. Fill only after that.

Then keep the chemistry normalBring chlorine and pH to standard levels and hold them there. Dose through the skimmer or a floater — never tip granules or drop tablets onto the shell, where a high local concentration can bleach the coating in that spot.

Before a full fillOn a large shell it is worth part-filling and leaving it a day to check the level holds before committing to the whole volume.

Each coat	15–20 mil · thin and even
Coverage, submerged	~100 sq ft per gallon at 3 coats
Color Activator	One per membrane container, same size and color
Cure before filling	7 days minimum · longer if thick or humid
Chlorine	Normal levels — high concentrations can discolor
Temperature	50–85°F · out of direct sun

Full pools guide, calculator and kit →

01 Drain, strip and dry

Drain it fully. If there are fish, move them before you start.
Remove any failed coating — the membrane bonds to sound substrate, not to something already letting go.
Let it dry out properly. Concrete that has held water for years holds it in the pores too. Days, not hours.

New concreteA newly built pond or fountain should cure about a month before you coat it. One owner let a new koi pond rest for a month first.

02 Clean the surface

You’ll need: Nu-Lift Cleaner · Stone Soap

Pressure wash if the surface takes it.
Apply Nu-Lift Cleaner and work it in to lift mineral deposits and old waterline staining. Rinse.
Follow with Stone Soap to clear the residue and rebalance the surface pH. Rinse again.
Let it dry completely before coating.

Fiberglass and metalFiberglass needs sanding with 60-grit first. Galvanized and bare metal take Nu-Lift, which chemically etches the surface.

03 Three thin coats

Each coat: 15–20 mil. Keep every coat in that range — thicker traps moisture and stays tacky, thinner leaves the membrane short of waterproof.

Stir well — pigments settle and unstirred product gives uneven color.
Roller on the flat, brush into corners, cracks and around any fittings.
Recoat when it holds no fingerprint. Three coats for submerged work.
Check the waterline and the base especially — those are where leaks reappear.

Thin coats, not thick onesA customer’s own words: your coats shouldn’t be too thick, that’s the secret. Thick coats trap moisture and stay tacky instead of curing.

04 Cure — then fill

Initial cure is at least 7 days, and longer if the coats went on thick or the air is humid. Owners who waited report no leaks; the ones who rushed are the ones who redid it.

Fish, birds and petsWait out the full cure before anything lives in it or drinks from it. Once cured the film is inert — customers keep koi in ponds sealed with it and let cats drink from a coated fountain daily.

Test it firstOne owner poured a bucket of water in after a week to check adhesion before refilling properly. A sensible step on a large feature.

Each coat	15–20 mil · thin and even
Coverage, submerged	~100 sq ft per gallon at 3 coats
Coats	3 — thin, not thick
Cure before filling	7 days minimum · longer if thick or humid
New concrete	Let it cure ~1 month before coating
Temperature	50–85°F · out of direct sun
Prep	D on concrete · sand fiberglass first

Full ponds & fountains guide, calculator and kit →

Need a hand? Call 1-833-211-2297 or email info@semcoworks.com — the team will check prep, coverage and cure timing before you start.

Before you buy

The questions worth asking.

What is the Liquid Membrane Color Activator?

The Color Activator is additional color pigment for SEMCO Liquid Membrane, used to deepen or adjust color, and is recommended for submerged applications.

When do I need the Color Activator?

Add it when you want stronger color or are coating a submerged surface such as a pool or fountain, where extra pigment improves appearance and coverage.