For foundation damp proofing, choose a coating labeled for concrete, masonry, or foundation use rather than a general-purpose sealant. MEM Black Insulating Paint is the clearest fit for soil-contacted foundations and cellar walls; Henry HE787074 is specifically described as foundation damp proofing. Flex Paste is better for small localized sealing tasks, while TUFINEIN is a broader water-based coating. One listed “foundation” product is makeup, not a building material, so it is included only to clarify the mismatch.
| Product | Best suited for | Key distinction |
|---|---|---|
| MEM Black Insulating Paint | Exterior concrete and masonry in contact with soil | Bitumen-emulsion coating |
| Henry HE787074 | Foundation damp-proofing applications | Water-based elastomeric emulsion |
| Flex Paste | Small localized sealing needs | Flexible rubberized paste; underwater application is listed |
| TUFINEIN Waterproof Sealant | Various indoor and outdoor surfaces | Clear water-based coating |
MEM Black Insulating Paint

Best for: Concrete, plaster, and fully grouted masonry exposed to soil moisture. The product is described as a bitumen-emulsion protective coating for foundations, cellar walls, and other earth-touched components, making its stated use closely aligned with foundation damp proofing.
The maker says the dried film is water-repellent, remains flexible rather than becoming brittle, and is intended for long-term outdoor use. Choose this if you want a coating whose listed applications specifically include foundation and soil-contact protection.
Limitation: The listing specifies use on fully grouted masonry outdoors. Check that your substrate and project conditions match the product directions before application.
Henry HE787074 Damp Proofing

Best for: Buyers looking for a product expressly identified for damp proofing and foundations. Its listed description is “water-based/elastomulsion-787, dampproofing & foundation,” which makes it a direct candidate for foundation-related work.
Compared with MEM, Henry’s listing identifies the product type as water-based elastomulsion, while MEM describes a bitumen emulsion and names concrete, plaster, and masonry uses. Choose Henry if the foundation damp-proofing designation is your main selection criterion.
Limitation: The supplied product details do not specify substrate preparation, application method, coverage, or other performance particulars. Review the complete label and project instructions before choosing it.
Flex Paste Rubberized Sealant

Best for: Small, localized sealing tasks where a paste is more practical than a coating. The product description says it penetrates to seal out air, water, and moisture, then dries into a flexible, watertight rubberized barrier. The listing also says it can be applied underwater and dries underwater.
Choose this if you need a paste-form sealant for a particular gap or spot. It is not the closest match for coating an entire foundation: MEM and Henry are more directly described for foundation or damp-proofing use.
Limitation: The supplied information does not identify it as a full-wall foundation coating. Confirm that the intended repair is suitable for a paste product.
TUFINEIN Clear Waterproof Sealant

Best for: Buyers seeking a clear, water-based coating for several listed surfaces and locations. The product description includes basements, walls, and indoor or outdoor concrete structures, along with brick, wood, metal, and ceramics. It says the coating cures into a transparent waterproof membrane.
Choose this if keeping the surface appearance visible is important and the product’s directions match the surface. Compared with MEM, TUFINEIN is described as clear and broad-use, while MEM specifically names foundations and soil-contacted components.
Limitation: The provided details do not specifically state that it is a foundation damp-proofing system for below-grade soil pressure. Do not assume a general waterproof coating replaces a foundation-specific solution.
ELROEL Blanc Cover Cream Stick

Best for: Makeup shoppers, not homeowners. This product is a color-changing cosmetic foundation stick with a built-in brush and a dewy finish. Its listing discusses skin coverage and makeup ingredients, not buildings, concrete, or moisture protection.
It is included because the supplied product list contains a cosmetic item alongside construction sealants. Do not choose it for foundation damp proofing.
Limitation: It is face makeup and has no listed building-sealing or waterproofing use.
Buying Guide: How To Choose Foundation Damp Proofing
Is the product specifically intended for foundation work?
Start with the stated application. MEM names foundations, cellar walls, and earth-touched components; Henry’s listing explicitly says foundation damp proofing. General waterproof sealants may suit some repairs, but their broad surface claims do not establish that they are appropriate for a below-grade foundation.
What surface and moisture condition do you need to address?
Match the product description to the substrate, such as concrete, plaster, or masonry. Also identify whether the concern is soil moisture, a localized leak, or moisture entering through a wider area. A paste such as Flex Paste is described as a spot-sealing format, whereas coatings are more relevant when treating a surface. Follow the product label for preparation and application.
Does the finish matter?
MEM is a black coating, while TUFINEIN is described as curing to a transparent membrane. Finish alone should not determine the choice: prioritize the stated application and substrate suitability. Do not infer that a transparent coating or a flexible sealant is a foundation system unless its documentation says so.
What should you verify before buying?
- Confirm that the label permits use on your specific surface and location.
- Check preparation, application, and curing instructions on the complete product documentation.
- Determine whether you need a coating for a broad area or a paste for a localized seal.
- Investigate the source of persistent water entry; a coating may not address every underlying drainage or structural issue.
Frequently Asked Questions
Which listed product is most directly described for foundation damp proofing?
Henry HE787074 is labeled for damp proofing and foundations. MEM also specifically lists foundations and soil-contacted components among its uses.
Can Flex Paste be used as a whole-foundation coating?
The supplied information describes it as a paste that seals and forms a flexible barrier, but does not identify it as a full-foundation coating. Check its complete directions for the intended application.
Is TUFINEIN a foundation-specific product?
The listing includes basements and concrete structures, but the provided details do not specifically identify it as a below-grade foundation damp-proofing system.
Is the ELROEL foundation stick suitable for masonry?
No. It is a cosmetic foundation makeup stick, not a construction or waterproofing product.