About

WATERPROOFING MADE EASY

The SEMCO Liquid Membrane™️ is a single component waterproofing and anti-fracture membrane. It is a self-contained elastomeric fluid suspended in a copolymer adhesive, this revolutionary blend enables easy application while providing excellent bridging, and waterproofing

Negative-side waterproofing is the application of a coating material to the interior or the 'dry' side of a foundation or wall. Its primary function is to create a barrier coat to stop water from leaking through the wall and keeping the space dry. We offer the perfect solution with SEMCO Liquid Membrane™️!

THE SOLUTION

Specs

Ready to use waterproofing and crack-prevention
Coverage : 200 - 250 sq ft /gallon @ 2 coats (20mil each)
Easy to apply : with 1/2" woven nap roller or brush
Substrates: Concrete, Pylwood, Stone, Tiles, Interior&Exterior Cladding, Metal&Aluminium, Drywall boards, ICF blocks
UV-Stable : Suitable for exterior applications

Product Data Sheet
Product Tech Sheet Product SDS

Benefits / Features

Waterproofing Concrete and Wood substrates
Repair cracks up to 1/4" wide
Repair control joints and cracks wider than 1/4"
Stabilization of detoriating and crumbling surfaces

WATERPROOFING

ADHESION

CRACK BRIDGING

Instructions

Surface Preparation
- Sweep all debris off surface to ensure proper bond. Clean up with water.
Roller / Brush Application
- Use a 1/2 nap roller. Allow any pre-treated areas to dry to the touch. Apply a generous coat of Liquid Membrane with brush or roller over substrate including pre-treated areas. Apply another generous coat of Liquid Membrane over the first coat of Liquid Membrane. Let topcoat dry to the touch, approximately 1–2 hours at 70 °F (21 °C) and 50% RH. When last coat has dried to the touch, inspect final surface for pinholes, voids, thin spots or other defects. Liquid Membrane will dry to bright orange color when it’s dry to touch. Use additional Liquid Membrane to seal the defects. Required thickness is 40 mil
Sprayer Application
- The sprayer being used for the application of Liquid Membrane should be capable of producing a minimum of 2,500 psi (17.2), maximum of 3,300 psi (22.8 MPa) with a flow rate of 0.95 to 1.6 GPM (3.6 to 6.0 LPM) using a 0.521 or a 0.631 reversible tip. Keep the unit filled with Liquid Membrane to ensure continuous application of liquid. The hose length should not exceed 100’ (30 m) in length and 3/8” (9 mm) in diameter. Required thickness is 40 mil

Drying / Cure Times

Drying Times

Curing Times

Available Colors

The Liquid Membrane is a single component waterproofing and anti-fracture membrane. It is a self-contained elastomeric fluid suspended in a copolymer adhesive, this revolutionary blend enables easy application while providing excellent bridging, and waterproofing

SUBSTRATES

✔️Concrete

✔️Plywood

✔️Exterior/interior cladding

✔️Residential, industrial and commercial

BENEFITS

✔️ACTIVE ADHESION : Integrated chemical adhesion enables mechanical cross-linking to the applied surfaces, creating a perfect bond for long lasting protection.

✔️WATERPROOF MEMBRANE : Low VOC waterproofing that allows you to proceed with your finish within 2 hours of application enabling a speedier project completion.

✔️ELONGATION WITHOUT BREAKING : Up to 400% stretch and elongation providing future crack suppression for years to come. Stabilizes wood substrates to receive surface finish products.

TOOLS NEEDED

WATERPROOFING CONCRETE AND WOOD SUBSTRATES

Liquid Membrane is the perfect self adhering Membrane for waterproofing concrete and wood substrates. Use it for your shower, fountain, pool interior and protect it from long term water or moisture damage

REPAIR CRACKS UP TO 1/4″ WIDE

Repair existing surface cracks and imperfections to ensure clean and smooth finish application.

REPAIR CONTROL JOINTS AND CRACKS WIDER THAN 1/4″

Up to 400% stretch and elongation providing future crack suppression for years to come.

STABILIZATION OF EXISTING SUBSTRATES

Repair existing surface cracks and imperfections to ensure clean and smooth finish application.

DRYING / RECOAT TIME

Drying times are affected by temperature and relative humidity. The chart represents guidelines values but each project is to be treated individually.

The chart represents the time needed in between coats at specified temperature.

CURE TIME

Curing time is affected by temperature and humidity.

For example at only 50º F, a full cure would take 10 days in comparison to at 95º F it would only take 5 days to cure.

COVERAGE

sq ft / gallon, 2 coats

Open pore substrate	100 - 200
Closed pore substrate	140 - 250
X-Bond Scratch Coat	200 - 300

SEMCO Liquid Membrane Data Sheet

SEMCO Liquid Membrane Tech Sheet

SEMCO Liquid Membrane™

Regular price: $39.90
Sale price: $29.90

Select Your Size

Pick Your Color

Quantity

EASY TO APPLY PROFESSIONAL-GRADE WATERPROOFING

Forms a continuous waterproofing barrier with exceptional adhesion and reduces crack transmission for all surfaces.

Can be applied on wood, concrete, fibreglass, metal and aluminium
Safe for fish, plant produce and saltwater use
For Interior, exterior, fully submerged in water and below grade applications
No need to paint anymore. Choose color, apply and waterproof!
Needs no catalyst or solvent
Easy application with roller, brush or airless sprayer
5 year standard limited warranty, 10 year for non-traffic surfaces

About

WATERPROOFING MADE EASY

THE SOLUTION

Specs

Ready to use waterproofing and crack-prevention
Coverage : 200 - 250 sq ft /gallon @ 2 coats (20mil each)
Easy to apply : with 1/2" woven nap roller or brush
Substrates: Concrete, Pylwood, Stone, Tiles, Interior&Exterior Cladding, Metal&Aluminium, Drywall boards, ICF blocks
UV-Stable : Suitable for exterior applications

Product Data Sheet
Product Tech Sheet Product SDS

Benefits / Features

Waterproofing Concrete and Wood substrates
Repair cracks up to 1/4" wide
Repair control joints and cracks wider than 1/4"
Stabilization of detoriating and crumbling surfaces

WATERPROOFING

ADHESION

CRACK BRIDGING

Instructions

Surface Preparation
- Sweep all debris off surface to ensure proper bond. Clean up with water.
Roller / Brush Application
- Use a 1/2 nap roller. Allow any pre-treated areas to dry to the touch. Apply a generous coat of Liquid Membrane with brush or roller over substrate including pre-treated areas. Apply another generous coat of Liquid Membrane over the first coat of Liquid Membrane. Let topcoat dry to the touch, approximately 1–2 hours at 70 °F (21 °C) and 50% RH. When last coat has dried to the touch, inspect final surface for pinholes, voids, thin spots or other defects. Liquid Membrane will dry to bright orange color when it’s dry to touch. Use additional Liquid Membrane to seal the defects. Required thickness is 40 mil
Sprayer Application
- The sprayer being used for the application of Liquid Membrane should be capable of producing a minimum of 2,500 psi (17.2), maximum of 3,300 psi (22.8 MPa) with a flow rate of 0.95 to 1.6 GPM (3.6 to 6.0 LPM) using a 0.521 or a 0.631 reversible tip. Keep the unit filled with Liquid Membrane to ensure continuous application of liquid. The hose length should not exceed 100’ (30 m) in length and 3/8” (9 mm) in diameter. Required thickness is 40 mil

Drying / Cure Times

Drying Times

Curing Times

Available Colors

SUBSTRATES

✔️Concrete

✔️Plywood

✔️Exterior/interior cladding

✔️Residential, industrial and commercial

BENEFITS

✔️ACTIVE ADHESION : Integrated chemical adhesion enables mechanical cross-linking to the applied surfaces, creating a perfect bond for long lasting protection.

✔️WATERPROOF MEMBRANE : Low VOC waterproofing that allows you to proceed with your finish within 2 hours of application enabling a speedier project completion.

✔️ELONGATION WITHOUT BREAKING : Up to 400% stretch and elongation providing future crack suppression for years to come. Stabilizes wood substrates to receive surface finish products.

TOOLS NEEDED

WATERPROOFING CONCRETE AND WOOD SUBSTRATES

REPAIR CRACKS UP TO 1/4″ WIDE

Repair existing surface cracks and imperfections to ensure clean and smooth finish application.

REPAIR CONTROL JOINTS AND CRACKS WIDER THAN 1/4″

Up to 400% stretch and elongation providing future crack suppression for years to come.

STABILIZATION OF EXISTING SUBSTRATES

Repair existing surface cracks and imperfections to ensure clean and smooth finish application.

DRYING / RECOAT TIME

Drying times are affected by temperature and relative humidity. The chart represents guidelines values but each project is to be treated individually.

The chart represents the time needed in between coats at specified temperature.

CURE TIME

Curing time is affected by temperature and humidity.

For example at only 50º F, a full cure would take 10 days in comparison to at 95º F it would only take 5 days to cure.

COVERAGE

sq ft / gallon, 2 coats

Open pore substrate	100 - 200
Closed pore substrate	140 - 250
X-Bond Scratch Coat	200 - 300

SEMCO Liquid Membrane Data Sheet

SEMCO Liquid Membrane Tech Sheet

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