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SEMCO Liquid Membrane™ Waterproofing
SEMCO Liquid Membrane™ Waterproofing
SEMCO Liquid Membrane™ Waterproofing
SEMCO Liquid Membrane™ Waterproofing
SEMCO Liquid Membrane™ Waterproofing
SEMCO Liquid Membrane™ Waterproofing
SEMCO Liquid Membrane™ Waterproofing
SEMCO Liquid Membrane™ Waterproofing
SEMCO Liquid Membrane™ Waterproofing
SEMCO Liquid Membrane™ Waterproofing
SEMCO Liquid Membrane™ Waterproofing
SEMCO Liquid Membrane™ Waterproofing
SEMCO Liquid Membrane™ Waterproofing
SEMCO Liquid Membrane™ Waterproofing
SEMCO Liquid Membrane™ Waterproofing
SEMCO Liquid Membrane™ Waterproofing

SEMCO Liquid Membrane™ Waterproofing

Sale price$25.90 Regular price$29.90
Save $4.00
Color:Semi-Clear
Select Your Size:1 Pint
Quantity:

💡 Did you know? 1 Pint covers up to:

Concrete: up to 15 sq ft*
Wood: up to 15 sq ft*
Metal/Aluminum: up to 15.6 sq ft*
Pools/Foundation: up to 10.5 sq ft*

* Based on 2 Coats. Coverage may vary based on surface porosity and application method.
 
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Pickup available at 3620 W Reno Avenue Usually ready in 4 hours

SEMCO Liquid Membrane™ Waterproofing

Semi-Clear / 1 Pint

3620 W Reno Avenue

Pickup available, usually ready in 4 hours

3620 W Reno Avenue
Las Vegas NV 89118
United States

+18332112297
  • Forms a continuous waterproofing barrier with exceptional adhesion and reduces crack transmission for all surfaces.
  • Exceptional as metal roof sealant and exterior roof waterproofing
  • Great for basement waterproofing and foundation waterproofing
  • Can be applied on Concrete, Wood, Stone, Tiles, Interior&Exterior Cladding, Metal&Aluminium, Drywall boards, ICF blocks, RV Roofs
  • Safe for fish, plant produce and saltwater use. For Interior, exterior, fully submerged in water and below grade applications
  • Easy application with roller, brush or airless sprayer
  • 5 year standard limited warranty, 10 year for non-traffic surfaces

How to use this product

1
Ensure a flawless application by properly preparing the surface before applying SEMCO Liquid Membrane waterproofing. For best results, follow our simple step-by-step guide below and experience the ultimate waterproofing for your surfaces.
2
Once the surface is fully prepped and dry, apply the SEMCO Liquid Membrane using a 1/2" woven nap roller. This ensures an even, seamless coat for maximum waterproofing protection.
3
For optimal performance, apply at least 2 coats, each 15 mils thick. For submerged applications, such as swimming pools or fountains, a minimum of 3 coats is recommended to ensure superior waterproofing and durability.
4
Scroll down for a detailed step-by-step application guide, or feel free to reach out to our friendly customer service team for any assistance you may need. We're here to help!
WATERPROOFING MADE EASY - PROFESSIONAL-GRADE MEMBRANE MADE AFFORDABLE AT ONLY $0.43 / sq ft ON A 5 GALLON PAIL.

The SEMCO Liquid Membrane™️ is a versatile, ready-to-use waterproofing and anti-fracture solution, combining COAT|COLOR|SEAL in one powerful product. Perfect for both indoor and outdoor use, this high-performance membrane is ideal for foundations, ICFs, basements, shower liners, deck and fence posts, planter boxes, and more. It adheres seamlessly to metal, wood, concrete, and various other surfaces, providing reliable waterproofing and superior protection. Free from solvents, non-toxic, and VOC-free, SEMCO Liquid Membrane™️ boasts a unique hybrid elastomer blend that ensures effortless application, excellent bridging, and outstanding waterproofing performance. Trust SEMCO for lasting protection in any environment.

SEMCO Liquid Membrane™️ SEMCO Liquid Membrane™️ Comparison Negative-side waterproofing is the application of a coating material to the interior or the 'dry' side of a foundation or basement. 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™️!

FOR STEP-BY-STEP GUIDES SPECIFIC TO YOUR PROJECT

1

Preparation

Sand the wood surface with a 60 grit sandpaper. Take off any loose coating and ensure surface is free of any debris

As wood often absorbs water, avoid pressure washing wood prior to the application.
2

Masking

Mask off areas that are not receiving any coating. Remove masking tape before material has fully cured.

3

APPLYING COAT

Use a 1/2" nap roller. Allow any pre-treated areas to fully dry. Apply a thin coat (0.015 inch per coat) of SEMCO Liquid Membrane™ with brush or roller over substrate including pre-treated areas. Once you can walk on the surface and not get any residue on your shoe or feet or cannot leave a fingerprint impression it is ready to re-coat. Apply another thin coat of SEMCO Liquid Membrane™ in an alternate direction over the first coat of SEMCO 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.SEMCO Liquid Membrane™ will dry to a lighter color when it’s dry to touch. Use additional SEMCO Liquid Membrane™ to seal the defects. Required total thickness is 0.03 - 0.04 inches for non submerged applications.

4

Curing Time

Curing time depends on temperature, humidity and airflow, however typically initial cure is within 6 - 7 days as per specific product recommendations.

5

Additional Information

• For clean up use warm water to clean brush or roller right after use.
• For optimal bonding we highly recommend preparing the surface as mentioned above for best results.
• Stir up the product well before use in order to mix up the color pigments.
• Avoid application in direct sun light in the afternoon or temperatures of over 85F as it might cause the product to dry too fast before it can adhere to the substrate
• Suitable for light foot traffic.For heavy foot traffic or vehicle traffic, we recommend using SEMCO Titan Shield Gloss.
• It can not be applied to wet substrates or substrates still containing moisture, else it will not cure correctly and stay tacky. Max. rest moisture in substrate can be up to 3%. If you are unsure about the moisture content, have it measured prior to application.
• For applications where the product is fully submerged, 3 coats @20mil each is required and allow a curing time of minimum 6-7 days.Also application must coat entire surface to above the waterline.
• Application on non porous surfaces such as metal or fiberglass : Apply thin coats as this will allow for the product to cure faster.
• Cure times are displayed in our curing chart. However if coats have been applied too thick, the surface might feel tacky. This is a sign of trapped moisture. If you have left over product, apply a very thin coat over the entire surface. The surface needs to be fully cured and hard before permitting water.
• For applications where SEMCO Liquid Membrane™ is applied on pool plaster, extended curing times might occur as plaster holds more moisture which needs to breath out first. A slight color change may occur when being in contact with water when the product has not fully cured yet. This however will not affect the performance of the SEMCO Liquid Membrane™.
• It is always advisable to apply a small test patch in an inconspicuous are to ensure adequate adhesion prior to full application.
• If you have multiple containers of SEMCO Liquid Membrane™, we highly recommend to either mix them together or use one container for the last layer to get color consistency.

Need Assistance?

OUR TEAM OF EXPERTS ARE STANDING BY TO HELP MAKE SURE YOUR PROJECT IS A SUCCESS.
CALL OR EMAIL US AT: 1-833-211-2297 info@semcoworks.com

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