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Newton HydroCoat 903 Primer for Cementitious Waterproof Membranes - For Cementitious Waterproof Membranes

Verified by manufacturer 2 months ago

Newton Waterproofing Systems

Primer designed for concrete applied prior to Newton’s cementitious waterproofing membranes & concrete repair products. 903 increases the adhesion of slurries, coatings & more to the substrate

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Application

APPLICATION

Saturate the horizontal concrete with water. Allow the water to soak into the concrete for 5-10 minutes. Remove all standing water and leave for another 5-10 minutes. Apply the product onto the concrete surface using the desired method of application. Ensure that the primer is applied evenly. It is better to apply too little product and then apply more as needed, than to apply too much and have to remove. The primer must soak into the surface of the concrete. Excess product must be removed by brush or squeegee.


POT LIFE & FURTHER USE

HydroCoat 903 Primer is a single component liquid with low viscosity with no chemical cure and so has no pot life. When some product is unused, simply reseal the packaging and use within shelf life parameters.


DRYING TIMES

For curing/drying times please see Technical Data Table on page 2.


OVER-COATING

The product to be applied over the primer, must be applied within 7 days. If the primer is not over coated after 7 days, the primer will need to be removed by grinding or sand-blasting. 


CONSTRUCTION & PREPARATION

In all cases, concrete floors should be ground or sandblasted to remove laitance. For further information, please refer to the data sheet of the product to be applied over the HydroCoat 903 Primer. 


CLEANING

Clean tools with water. Contaminated water must be disposed of safely and in accordance with local authority regulations for the disposal of waste products. Please refer to product label and product SDS for further information on safe disposal. 


LIMITATIONS

• Do not apply too much primer. The substrate should be discoloured by, not saturated in the primer. Applying too much primer will reduce the bond of the coating to the concrete

• Do not apply prior to heavy rain

• Do not apply at temperatures lower than +5°C or higher than +35°C

• Not suitable for concrete containing wax or fat capillary blocking admixtures

• If adulterated by rain, mechanically remove the primer


Description

Newton HydroCoat 903 Primer is a modified styrene/acrylic copolymer primer for concrete that is applied prior to the installation of Newton’s range of high performance cementitious waterproofing membranes, concrete repair and floor coating products, minimising the risk of out-gassing from both internal and external concrete substrate. The primer is extremely quick and simple to apply by broom, airless spray, roller or squeegee, Newton HydroCoat 903 Primer can be applied over new and damp concrete and is soon ready for the application of the Newton membrane above, providing for continuity of work even during the wetter months of the year when most membrane systems cannot be used. 


KEY BENEFITS

• Quick to apply

• Is applied to saturated concrete and so can be applied shortly after heavy rain

• Can be applied to new concrete > 20 N/mm2

• Significantly reduces the risk of pin-holing within the cementitious slurry or coating lowering the incidence of outgassing

• Very quick curing - the membrane or coating can be applied within


NEWTON SYSTEMS

HydroCoat 903 Primer is a component of the Newton HydroCoat System for internal ‘Type A’ waterproofing. HydroCoat 903 Primer is applied to the horizontal concrete surface prior to the application of Newton cement based membranes, coating or repair products


LIFE EXPECTANCY

The primer is taken up by the surface capillary network of the concrete and then covered by the coating, membrane or repair product and therefore has a life expectancy of the concrete it is applied to or the covering above.


Features and benefits:

  • Extremely quick to apply – 10m²/min is possible.
  • Can be applied to damp/wet concrete.
  • Can be applied to new concrete > 20N/mm².
  • Further increases the adhesion of Newton cementitious slurries, coatings and repair products to the concrete substrate.
  • Very quick curing – the membrane or coating can be applied within 40 mins at 25ºC and within 90 mins at 5ºC.

General information

Color

Green

Manufacturer guidance


Pale green.


Finish

Smooth

Material

Liquid

Guidance for specification option:

Modified styrene/ acrylic copolymer primer

Shape

Guidance for specification option:

Form - single component: Low viscosity liquid

Length

Bespoke

Width

Bespoke

Height

Bespoke

Warranty description

60 year

Uniclass

Pr_35_31_66_67 Primer-sealersPrimary

CAWS

J30/110 Cold-applied tanking

J30/130 Cold-applied damp-proofing

J31/10 Warm deck roof coating

J31/110 Cold deck roof coating

J31/120 Warm deck roof coating

J31/130 Inverted roof coating

J31/353 Waterproof coating

J40/295 Geocomposite studded cavity drainage/ venting membrane

Product range

Primers, Preparation and Reinforcement

Specification data - Primer-sealers

Composition

Low viscosity liquid modified styrene/ acrylic copolymer primer.

Specific gravity

1.02.

Pack size (plastic container)

5 L.

Weight

5.3 kg.

Application rate - open surface after grinding

0.1 - 0.2 L/m².

Shelf life

12 months.

Application temperature

+5°C to +35°C.

Service temperature

-15°C to +180°C.

Odour

Slight neutral odour.

VOC content

0%.

Sustainability data

Contains Red List materials

Yes

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Recyclability

0

Recycled content

As defined in clause 7.8 of BS EN ISO 14021

0 %

Literature

HydroCoat 903 Primer TDS

HydroCoat 903 Primer TDS

HydroCoat 903 Primer SDS

HydroCoat 903 Primer SDS

Case studies

Flooded Shop Basement Refurbishment, Chelsea

Flooded Shop Basement Refurbishment, Chelsea

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