Hello, can this be mixed with Portland cement since its a concentrate or should it just be mixed with water and be used as is?

Just mix with water and use as is, it has some Portland Cement in it already!

Can this be applied on top of hydraulic cement?

No, the concrete must have an open capillary system in order for the Concentrate to to enter the pores and do it's job, therefore there can be no previous coatings, paints or laitance on the surface.

Coverage is 1lb per 6sqft. Is that after mixing with water or dry mix?

https://www.youtube.com/watch?v=iCXf5QD7REM Xypex Concentrate's ideal coverage thickness is 1/16 in. uniformly applied. At that application rate 1lb powder mixed with appropriate amount of water will cover 6 sq. ft. For estimation purposes the total square footage to be covered divided by 6 will approximate the pounds of material necessary for the project.

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Generic Xypex Concentrate Concrete Sealer, Grey, Waterproof, Cement-based, 1 Count

Generic Xypex Concentrate Concrete Sealer, Grey, Waterproof, Cement-based, 1 Count

Product ID: 356493912

Details

Brand
Xypex
Item dimensions L x W x H
25.4 x 25.4 x
Item weight
9.07 kg
Style
Compact
Water resistance level
Waterproof

💧Waterproof up to extreme hydrostatic pressure

⚙️Seals hairline cracks ≤0.4 mm

🛡️Permanent integral crystalline protection

Description

💧 Seal the future, waterproof your legacy.

CHEMICAL WARRIOR - Highly resistant to aggressive chemicals without toxic VOCs, ensuring safety and durability in harsh environments.
BREATHE EASY CONCRETE - Allows concrete to breathe naturally while providing a waterproof barrier—no trapped moisture, no worries.
CRACK SEALING PRECISION - Effectively seals static hairline cracks up to 0.4 mm, preventing costly damage before it starts.
UNMATCHED HYDROSTATIC DEFENSE - Resists extreme water pressure from any direction, keeping your concrete fortress dry and secure.
EFFORTLESS APPLICATION LONGEVITY - No priming, sealing, or special surface prep needed; permanent protection that won’t deteriorate or tear.

Xypex Concentrate is a grey, cement-based waterproofing sealer that chemically integrates into concrete to form a permanent, crystalline barrier. It withstands extreme hydrostatic pressure, seals hairline cracks up to 0.4 mm, and resists aggressive chemicals without VOCs. Designed for demanding infrastructure like reservoirs, tunnels, and pools, it requires no surface priming or seam finishing, offering a cost-effective, durable solution for professional-grade concrete protection.

Specifications

ASIN	B08XBX7Z7R
Brand	Xypex
Colour	grey
Compatible Material	Concrete, Metal
Item Dimensions	25.4 x 25.4 x 25.4 centimetres
Item Form	Liquid, Paste
Item Weight	20 Pounds
Item dimensions L x W x H	25.4 x 25.4 x 25.4 centimetres
Item form	Liquid, Paste
Item weight	20 Pounds
Manufacturer	Xypex Chemical Corporation
Manufacturer Part Number	CON-020
Model Number	CON-020
Number of Items	2
Style	Compact
Style Name	Compact
Surface Recommendation	Concrete
Water Resistance Level	Waterproof
Water resistance level	Waterproof

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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