Cemher HydroPrimer

Rated 4.5/5 by hundreds of happy customers

£24.00 (incl. VAT)

Size

HydroPrimer® is a single component, water based, acrylic pre-sealer for porous microcements, like MicroDur. The primary purpose of HydroPrimer is to prepare the microcement surface for subsequent coats of AquaMax, MaxiPur or AquaPur. It increases hardness, provides waterproofing and helps to prevent roller marks in the finish.

Increases working time with final sealers
Begins waterproofing porous microcement surfaces
Increases surface hardness

Uses / Areas of Application

Apply on freshly laid single component MicroDur surfaces (excludes MicroDur Plus).

Can be applied both vertically and horizontally.

Not suitable as an adherence promoter.

Characteristics / Benefits

Water based
Zero VOC, environmentally friendly
Ready to use
Prevents roller marks
High coverage and elasticity
Non-yellowing
Easy application and cleaning
Moderate elasticity
Odourless
Very good adherence
Single-component
Provides waterproofing

Before applying Hydroprimer® the substrate must be properly prepared. It must be dry, clean and free of dust, grease or dirt, with a maximum moisture content of 5%.

At this stage, the microcement surface is very absorbent, HydroPrimer is a pre-sealer that will start to make the surface waterproof so that it is less absorbent when the Polyurethane is applied, allowing them to be applied more easily.

Diluting the HydroPrimer with 50% water will give you more time to work with it.

Use a medium pile roller to apply the diluted coat of HydroPrimer ensuring it is completely and evenly saturated.

Saturate an area and then go back over it with the roller to iron out lines and remove any excess product.

Work quickly & randomly, keeping the edge wet.

Leave to dry, this should take around 3 hours but may vary depending on temperature and humidity.

Then apply a neat coat of HydroPrimer in the same way that you applied the 1st coat.

Ensure you cover the full area with both coats of HydroPrimer and use the full consumption across the 2 coats.

	Application on Single Component MicroDur Surface
Process	1 x Diluted Coat 1 x Neat Coat
Mix Ratio	Diluted Coat: 50% Water / 50% HydroPrimer Neat Coat: 100% HydroPrimer
Standard Consumption	1l per 10m2 (2 Coats)
Estimated Drying Time	Diluted Coat: Minimum 1 hour No Maximum Neat Coat: Minimum 4-5 Hours before AquaMax, AquaPur or MaxiPur
Tools Required	Medium Microfibre Roller Roller Tray
Safety & PPE	Nitrile gloves Eye protection Ensure adequate ventilation throughout

Speedy Deliveries

The Relentless team complete all orders by hand and mix all colours to order. Our highly experienced warehouse team are incredibly quick at this. Plus, we hold a large amount of stock in the UK so that we can get products out to you within the following timelines:

UK mainland: 1 – 3 working days
Isle of Wight: 2 – 4 days
Northern Ireland, Scottish Highlands, Off-Shore Islands: 5 – 7 days

Collect in Leeds

If you're local, you’re very welcome to collect your order from our warehouse in Leeds. Once you have placed your order we’ll contact you to let you know when it’s ready for collection.

You can view our delivery policy for more information on deliveries and collections.

Product Description
Uses / Areas of Application

Apply on freshly laid single component MicroDur surfaces (excludes MicroDur Plus).

Can be applied both vertically and horizontally.

Not suitable as an adherence promoter.

Characteristics / Benefits
- Water based
- Zero VOC, environmentally friendly
- Ready to use
- Prevents roller marks
- High coverage and elasticity
- Non-yellowing
- Easy application and cleaning
- Moderate elasticity
- Odourless
- Very good adherence
- Single-component
- Provides waterproofing
Installation

Before applying Hydroprimer® the substrate must be properly prepared. It must be dry, clean and free of dust, grease or dirt, with a maximum moisture content of 5%.

At this stage, the microcement surface is very absorbent, HydroPrimer is a pre-sealer that will start to make the surface waterproof so that it is less absorbent when the Polyurethane is applied, allowing them to be applied more easily.

Diluting the HydroPrimer with 50% water will give you more time to work with it.

Use a medium pile roller to apply the diluted coat of HydroPrimer ensuring it is completely and evenly saturated.

Saturate an area and then go back over it with the roller to iron out lines and remove any excess product.

Work quickly & randomly, keeping the edge wet.

Leave to dry, this should take around 3 hours but may vary depending on temperature and humidity.

Then apply a neat coat of HydroPrimer in the same way that you applied the 1st coat.

Ensure you cover the full area with both coats of HydroPrimer and use the full consumption across the 2 coats.

https://youtu.be/Vk20VxNXdYk

Specification

	Application on Single Component MicroDur Surface
Process	Application on Single Component MicroDur Surface: 1 x Diluted Coat 1 x Neat Coat
Mix Ratio	Application on Single Component MicroDur Surface: Diluted Coat: 50% Water / 50% HydroPrimer Neat Coat: 100% HydroPrimer
Standard Consumption	Application on Single Component MicroDur Surface: 1l per 10m2 (2 Coats)
Estimated Drying Time	Application on Single Component MicroDur Surface: Diluted Coat: Minimum 1 hour No Maximum Neat Coat: Minimum 4-5 Hours before AquaMax, AquaPur or MaxiPur
Tools Required	Application on Single Component MicroDur Surface: Medium Microfibre Roller Roller Tray
Safety & PPE	Application on Single Component MicroDur Surface: Nitrile gloves Eye protection Ensure adequate ventilation throughout

Shipping
Speedy Deliveries

The Relentless team complete all orders by hand and mix all colours to order. Our highly experienced warehouse team are incredibly quick at this. Plus, we hold a large amount of stock in the UK so that we can get products out to you within the following timelines:
- UK mainland: 1 – 3 working days
- Isle of Wight: 2 – 4 days
- Northern Ireland, Scottish Highlands, Off-Shore Islands: 5 – 7 days
Collect in Leeds

If you're local, you’re very welcome to collect your order from our warehouse in Leeds. Once you have placed your order we’ll contact you to let you know when it’s ready for collection.

You can view our delivery policy for more information on deliveries and collections.

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What our Customers Say

great team and excellent products

Have been using Relentless for a few years now, great team and excellent products.

Customers are thrilled

Used Relentless again on another project; very happy with the quality and service as usual! Customers are thrilled with their new wet room so thumbs up all round!

Great products, great training

Great products, great training videos and fast delivery! Fantastic company.

Happy clients. Thanks.

This was new to me and my first foray into microcement. The buying process was straight forward and helpful and the training video/ description on how to prep and apply was very good and allowed me to successfully do the job. Happy clients. Thanks.

Very good technical advice

Is a very good stuff Good supplier

Very good technical advice

Very good technical advice and products were sent straight away highly reccomemd 🤩

Paul R

I’ve been using relentless microcement for quite a few years now, great product range. They have pretty much everything you need for your projects whether it be inside, outside, worktops, bathrooms, and flooring. Richie and sally are easy to talk to and they know everything you need to know about their products. 5 stars everytime

We’re over the moon

Amazing product and service as always from Relentless. Just finished my living room floor and walls and we’re over the moon with the finish. Thanks Relentless 👍

There’s a product for every need!

I’ve done quite a few jobs now over the past four years and can’t fault it. There’s a product for every need! It’s easy to apply once you get the hang of it and anything that you’re not sure about relentless are there to advise you. The only problem you’ll have is deciding which colour to choose !

Products are great

Products are great and we have purchased them several times, but the highlight is costumer servise. It’s rare to have prompt and professional costumer service – this is the main reason why we are choosing this company. We had issues once with the delivery and Sally handled it in the best way possible. Overall delivery is actually super quick.