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

💧Resists extreme hydrostatic pressure

🧱Seals hairline cracks up to 0.4 mm

🛡️Integral substrate bonding, permanent protection

232467 Ft

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Sold byAmazon HungaryDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Seal the future, waterproof your legacy.

SMART CRACK SEALING - Effectively seals static hairline cracks up to 0.4 mm, preventing leaks before they start.
VERSATILE APPLICATION - Applies on positive or negative sides, no dry surface needed—work smarter, not harder.
ECO FRIENDLY COST EFFECTIVE - Non-toxic, zero VOCs, no priming or seam finishing—save time and the planet.
UNMATCHED HYDROSTATIC DEFENSE - Withstands intense water pressure to keep your concrete dry and durable.
CRYSTAL CLEAR CONCRETE INTEGRATION - Transforms into a permanent part of your structure for lifelong protection.

Xypex Concentrate is a grey, cement-based waterproofing sealer that chemically bonds with concrete to form a permanent, crystalline barrier. It resists extreme hydrostatic pressure, seals hairline cracks up to 0.4 mm, and can be applied on either side of concrete surfaces without requiring dry conditions or costly surface prep. Ideal for demanding environments like reservoirs, tunnels, and treatment plants, it offers a non-toxic, VOC-free, and cost-efficient solution for long-lasting 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
Manufacturer	Xypex Chemical Corporation
Manufacturer Part Number	CON-020
Model Number	CON-020
Number Of Items	2
Style Name	Compact
Surface Recommendation	Concrete
Water Resistance Level	Waterproof

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