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RIW Flexiseal Pro – 5KG & 20KG

RIW Flexiseal Pro – 5KG & 20KG

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From £214.80(Inc VAT)
From £179.00(Ex VAT)
SKU: RIW Flexiseal Pro – 5KG & 20KGCategory: Waterproofing & Damp Proofing Brand: RIW
RIW Flexiseal Pro is a solvent-free epoxide solution that cures to provide a tough but flexible waterproof coating. The formula is also polymer-modifi... Read full description
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RIW Flexiseal Pro is a solvent-free epoxide solution that cures to provide a tough but flexible waterproof coating. The formula is also polymer-modified and has a variety of practical construction applications.

RIW Flexiseal Pro Red uses & benefits

RIW Flexiseal Pro is designed to be used as a damp proof membrane and prevents water from entering basements, decks, balconies and more. This product can also be used as a containment system in plant rooms and will bridge cracks in areas where movement is expected.

Benefits include:
  • Water and moisture barrier.
  • Extremely durable, but flexible.
  • Easily applied by hand or spray.
  • Can be used on damp surfaces.
  • Great resistance to chemicals & UV.
  • Shields surfaces from carbon dioxide & methane.

How to use RIW Flexiseal Pro

Prime surfaces with one coat of Flexiseal Pro Primer. Apply one coat to horizontal areas and two coats on vertical surfaces.

To be primed with RIW Flexiseal Pro Primer

RIW Flexiseal Pro Size - 5KG & 20KG

Download the RIW Flexiseal Pro Red technical datasheet (PDF)



Delivery and Return

Charges start from £6.90 inc vat on small, lightweight orders and £22.50 inc vat on heavier or difficult to transport items.

All small item orders with a value of £100.00 inc vat will be carriage paid.

All large item orders with a value of £200.00 inc vat will be carriage paid.

*small or large classification of items are determined by weight and dimension of product*

Please note that your order may need to be split into separate packages if over 30KG.

All of the above is based on UK Mainland deliveries, further charges may be incurred if the delivery address is outside of this.

We are also currently unable to deliver outside of the UK on our regular carrier so if you require delivery outside the UK please call or email the details to the office as we reserve the right to refuse service or refund orders based on this.

Guarantee next day delivery.

Some of our products have a note that states – if ordered before 1pm and being delivered to UK mainland on a next day basis.

Please note that given the current circumstances alot of carrier companies are struggling to keep up with demand and although we do book these deliveries as next day services, the carriers cannot always fulfil these and an extra day may be required.

A high percentage of our advertised goods are stock items but be aware that if you are taking very large quantities of stock that we may not be able to fill your order fully on first delivery. Please call the office to check to not be disappointed.

We are also an active trade counter and part of a larger network of companies so stock can be taken at any time but we will always aim to deliver your goods as soon as possible.

Also if ordered along side goods that we cannot guarantee next day delivery on, these will be delivered based on the schedule of the other item.

Signature required on delivery.

The carrier we currently use requires a signature for all deliveries as a proof of delivery. If you cannot guarantee someone will be home to receive this please leave delivery instructions for a safe place or neighbour to leave your goods with. Due to covid and new contactless deliveries, our carriers will not require a signature but will take down the recipients name as POD.

If no one is available to take the delivery, the courier will leave details at the address to rearrange delivery or may leave with a neighbour. Note we may need to make an additional handling charge for the return and re-delivery if a package is unable to be delivered multiple times due to no one being home to receive this. Due to covid our carriers are restricting the number of re-delivery attempts.

After three attempted deliveries our carrier will return the goods to ourselves and in this worst case situation, we may cancel the order and refund your money, excluding any additional charge for the return and re-deliveries.

Materials delivered from our own stock.

Normally 1 – 2 days (this can sometimes be longer if we are waiting for manufacturers’ stock to arrive into ours).

If the order is placed before 1:00pm and all of the items are in stock, then we will endeavour to dispatch your order same day for delivery the following day.

This still applies for deliveries out of our local area but please note that we use independent carriers so be aware that there may be external factors which we cannot control (e.g Far out postcodes or local traffic situations)

Materials delivered direct from the manufacturer.

There may be some occasions when it is more efficient or cost effective to have the materials shipped direct from our suppliers to the customer.

We will place the order immediately upon receipt of your order but this can sometimes take a few working days depending on the manufacturers production schedule or carrier used.

We will always endeavour to get the goods to the customer at the earliest possible date but if these are urgently required, please speak to us to check.

Please note that many manufacturers will offer a next day delivery service at an increased delivery cost and also a cut of time for this order to be placed (usually around 11am / 12pm)

Please call us on 08454 530 017 between 8am and 5pm Monday – Friday or email us on [email protected] for any delivery queries, or urgent requirements.

Please read our full terms and conditions with regard to full details on deliveries.

Flexiseal Pro is a two-pack solvent-free polymer modified epoxide coating which cures to give a continuous tough but flexible waterproof coating.

Benefits include:

  • Water and water vapour barrier
  • Colour-coded for quality control
  • Seamless & fully bonded coating
  • Can be applied in one coat to horizontal areas
  • Tough & flexible, able to accommodate differential movement
  • Cold applied by hand or spray
  • Simplifies application to irregular profiles & complex details
  • Can be applied to damp surfaces
  • High substrate adhesion
  • Good chemical & UV resistance
  • Effective barrier to carbon dioxide & methane

RIW Flexiseal Pro can be used in:

  • Basement and sub-structures
  • Podium decks
  • Elevated decks (terraces & balconies)
  • Ground floor DPM
  • Plant rooms & containment bunds
  • Superstructures
  • Gas proofing

RIW Flexiseal Pro should have 1 coat if the surface is horizontal, or 2 if the surface is vertical.

No, application over existing coatings with RIW Flexiseal Pro is not advised.

RIW Flexiseal Pro surface preparation can be different depending on the substrate:

All Surfaces: Should be smooth, clean, sound and free from frost, oil, grease, condensation and other contamination. Any voids or hollows must be made good to a flush finish, with a suitable filler. Any sharp edges or high points should be eliminated. Powdery or flaking surfaces should be removed by suitable means. All standing water should be removed. External corners should be chamfered or rounded where required, to assist application.

Concrete Surfaces: Horizontal surfaces should preferably be smooth, however lightly tamped (2-3mm peak to trough profile maximum), brushed or floated surfaces are preferred.

Masonry: Should be sound with joints flush pointed or ‘bagged out’ with Cementfill or similar before the membrane is applied. Open textured surfaces should be sealed with Cementfill FC or a sand/cement slurry to provide a suitable surface. If existing surfaces are very rough, they may require preparing with a Cementfill FC or a sand/cement render coat.

Metal surfaces: Should be wire brushed or sandblasted and pre-treated with a steel primer prior to the application of the Flexiseal Pro Primer and Flexiseal Pro. Corroded metal should also be treated with an anti-corrosive primer. Flexiseal Pro Primer is compatible with most commonly encountered steel primers including alkyd, chlorinated rubber and epoxy-based paints. Consult RIW for galvanised steel and/or other treatments.

Avoid contact with eyes and skin. Ensure adequate ventilation of the working area. Wear suitable protective clothing, gloves and eye/face protection. When using do not eat, drink or smoke

Until touch dry, RIW Flexiseal Pro takes 6 hours minimum.