• Deco Seal Waterproof Membrane 5 gal. (Shipping Incl) - DS5
  • Deco Seal Waterproof Membrane 5 gal. (Shipping Incl) - DS5
  • Deco Seal Waterproof Membrane 5 gal. (Shipping Incl) - DS5
  • Deco Seal Waterproof Membrane 5 gal. (Shipping Incl) - DS5
  • Deco Seal Waterproof Membrane 5 gal. (Shipping Incl) - DS5
  • Deco Seal Waterproof Membrane 5 gal. (Shipping Incl) - DS5
  • Deco Seal Waterproof Membrane 5 gal. (Shipping Incl) - DS5
  • Deco Seal Waterproof Membrane 5 gal. (Shipping Incl) - DS5
  • Deco Seal Waterproof Membrane 5 gal. (Shipping Incl) - DS5
  • Deco Seal Waterproof Membrane 5 gal. (Shipping Incl) - DS5
  • Deco Seal Waterproof Membrane 5 gal. (Shipping Incl) - DS5
Price: $205.00

    Deco Seal is a 100% water based coating designed to protect foundation walls from hydrostatic water pressure. Designed for poured concrete walls, ICF walls, precast and block (parged/non-parged) walls.

    • ICC classified as a waterproof material for above and below grade applications.
    • Deco Seal can be applied 1 day after forms are removed or block mortar is dry. No waiting 7 or 28 days like other products bc Deco Seal is 100% waterbased no interference w/ curing process.
    • UV resistant, No grade line issues. Tar, solvent systems cannot be applied above grade.
    • Apply from Footer Joint upto the Sill Plate - Complete Wall Protection!!
    • Seemless - Liquid applied.(No cutting, taping seams, nail guns, screws into wall - labor intensive)
    • Colors available: LIGHT GRAY or BEIGE
    • Very LOW VOC's, Non-Hazardous, Paintable, Breathable or Permeable.
    • Meets all STATES building codes in USA.
    • Easy roll on with 3/4" or 1" nap roller or airless sprayer (2500+psi & 1-2 gal. per min. flow rate)
    • No need for 6 mil. poly, dimple boards or wraps over our product when dry. If grade is rocky, shale or sharp edged, heavy clay, etc. a 1/2" or 1" white/pink/blue foam board as a "Protection Board" (not part of the waterproofing system) can be placed over Deco Seal when dry.
    • Elasticity testing to bridge a crack up to 1/8"
    • Designed for DIY, professional applicators, poured wall/concrete contractors, masons, etc.

    Most waterproofing products are solvent based or water emulsified. That just means water is added to a solvent based polymer. It's still solvent based just labeled water based or emulsified. Not healthy.


    Deco SEAL Applications

    Foundation Walls:

    • CMU Block, Precast, Poured Concrete, ICF & Styrofoam Walls.
    • Parged Block * (also known as a mortar scratch coat over CMU block)
    • Open or Exposed Walls and Tapered Grade Lines. Esthetic Looking!


    • Remove all dirt, dust, oils, foreign material which is to be coated.
    • Fill or repair any cracks, honeycomb, wall ties, holes, etc. with Deco Tie Patch or concrete repair caulk/patch.
    • New Construction - Surface must be dry to allow for proper adhesion. Can be applied on green concrete. The American Concrete institute (ACI) defines green concrete that has set but not appreciably hardened.
    • Use 2000+ PSI airless sprayer w/ flow rate of 1-2 gallons per minute. Apply first coat w/ no run downs and if you can apply second coat at starting point and second coat holds w/ no run downs apply. Otherwise let first coat set until second coat can be applied.
    • Roll On - Use 3/4" or 1" nap roller and apply on surface evenly but do not product run down or your applying to heavy. Apply one coat let dry then apply second coat.
    • Protection Boards - Optional if grade is heavy clay, rocky/shale we recommend a pink/blue board. Apply liquid nails on board and place against the wall over Deco Seal.
    • Temperature of 32-95 degrees otherwise cold or evaporation will affect Deco Seal dry/curing and/or coverage rate
    • Do not apply with the threat of imminent rain. Perform test to insure desired results.
    • Dry cure rate is 12 hours. Dependent on temperature, airflow, humidity. Do not backfill grade until Deco Seal is dry.

    * Specifications require Deco 20 Clear Sealer to be applied first on non-parged block walls only. Allow Deco 20 to dry then apply Deco Seal. Deco 20 is a primer and increases adhesion.

    Deco SEAL Technical Information

    ICC (International Code Council) Classification:

    • An evaluated and approved waterproof material above and below grade

    Deco Seal Characteristics:

    • Water based acrylic resin, smooth, opaque, Gray viscous liquid
    • Odor of a latex waterborne system
    • Non-Hazardous, Non-Toxic, Non-Carinogenic/Cancerous
    • Prolonged contact may cause irritation
    • No solvents, UV resistant, Paintable, Breathable


    • ASTM C 1306, Hydrostatic pressure over cracks
    • ASTM C 836, Section 6.7 Low-temperature flexibility and crack bridging
    • ASTM C 836, Section 6.10 Adhesion strength
    • ASTM D 2939, Section 15 Resistance to water
    • ASTM C 836, Section 6.9 Remain in place during applic. (film thickness)
    • ASTM E 96, Water vapor permeance (transmission)
    • ASTM C 836, Section 6.12 Extensibility after heat aging

    Additional Testing Outside the Scope of AC 29

    • ASTM E 154, Section 13 Resistance to decay
    • ASTM D 2565-1999, Color fastness of surface coating
    • ASTM D 3273-94, Resistance to mold growth of surface coating

    Reports (PDF's):

    1. Data Sheet - General Overview
    2. Applicators Guide
    3. ICC Report
    4. MSDS Report

    Coverage Rate

    • Block Construction: 50-60 sq.ft/gal.
    • Parged (concrete scratch coat) over block: 50-60 sq.ft/gal.
    • Concrete: 60-70 sq.ft/gal.
    • ICF or Styrofoam Board: 70-80 sq.ft/gal.
    • 5 GAL PAIL = 300 - 325 sq.ft coverage (incl. 2 thin coats)

    (Dependent on temperature, equipment used, surface porosity)


    Deco SEAL does not require a protection board. Tar related materials applied above grade require a protection board, taping of seams, cutting to length.

    Packaging & Colors

    • 5 gal. & 55 gal.
    • Light Gray & Beige

    Poured Concrete Walls - Deco Seal Spray Application

    Block Walls - Parged & Non-Parged, Roll On Application

    Overall Customer Rating of 12 Reviews:

    Bone Dry - Very Impressed!

    I used this on the exterior of the block walls on my son's workshop above and below grade and the basement level is bone dry. Very impressed. I'm hopeful it will work as well controlling the moisture and mold in the basement level of my existing workshop when i spray the interior of the block walls. Thanks in advance for a great product.

    Hardenned quickly with tightened cap within weeks of opening. Unusable. Waste.

    DecoSealer hardened so much after a few weeks of being 100 percent sealed, cap screwed as tignt as possible. seal still intact. yet i can't even pour the product out of the 5 gallon can. 90 percent of the product is still left.
    I texted owner, mark hines, informing him. he never texted or called me back. i asked for a refund and a shipping label so i can send the hardened decosealer back to him so he can see for himself.

    (Every DECO SEAL label on our packaging and the application guide that accompanies every order, highlights one main topic and it pertains to product thickening. This is the only topic highlighted in ALL CAPS on every label or the only full sentence in our Applic. Guide that is Underlined. In summary, it states that upon delivery of our product it can thicken if it sits for a week or more because elastomeric materials including SEAL can thicken or the solids can separate from the water. Very warm temperatures expedite this process.  Therefore; if SEAL is not used for a week or longer it may have to be mixed by the customer either with a small drill mixer or a very stiff paint stick. The viscosity of SEAL is thicker than paint. Elastomeric materials are unlike paint bc they contain much more solids/resins so they have the elasticity to bridge cracks. This is why you can get thickening or solid separation vs. paint)
    Call us directly if you ever have any questions. Thank you - DECOSEALERS!!

    Stellar products, Customer Service & Tech Support

    Highly recommend.
    After having bad experiences with several other waterproofing products such as Dry-Lok, Blue Max Liquid Rubber, Flex-seal Liquid and more, Iwas pleasantly surprised at how easy both the Tac Primer & Gray Deco Seal was to apply, dried quickly and easy cleanup. Looks great.
    I applied both to a cement foundation with a large paint brush quickly. Deco Seal goes on easily, quickly, no drips. Felt like light pudding going on.
    I plan on using these products on more foundation waterproofing projects.
    Customer service and tech support fr owner, Mark Hines, was outstanding.
    Don’t hesitate to use these products. Much better than anything else I’ve found.

    Deco 20

    I used this product today easy to use looks great. The company is there for you if you have questions or concerns. They answered all my questions put me at ease. I wish more companies were as good as this one for customer service.

    Use of Deco Sealers

    I used 5 gallons of Deco20, then 8 gallons of Deco gray membrane above and below grade on my split-face block -on-slab garage. I applied the Deco20 with a garden sprayer and was happy when it rained the next day! The water no longer penetrated the block. The membrane was applied in two coats with a 3/4” nap roller and followed behind with a brush. The finished product is stupendous! It really looks great and I believe I made the right call as far as waterproofing. The grade is sloped into the back of the garage with free water standing during construction. No moisture has shown yet. I give the whole process a “5”. The only minor issue was that the second pail of membrane was considerably darker in color than the first, making a third coat necessary in some areas. In all, we couldn’t be happier with the result so far.

    Joe Nemmer
    (Thank you for letting us know about the color differentiation. That process will change going forward)


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    Item #: DS5