RASOGUM 5kg

$86.30 - $86.30

$86.30 incl. GST

$86.30 - $86.30

$86.30 incl. GST

Overview

RASOGUM+ is a high-performance, ready-to-use waterproofing membrane designed for internal wet areas like bathrooms and showers. It’s a fast-drying, flexible acrylic solution that forms a seamless barrier under tiles—keeping moisture out and structural integrity in. BRANZ appraised and fully compliant with AS4858:2004, it’s built to meet both NZ and Australian standards for durability, safety, and indoor air quality. Whether you’re waterproofing a new build or upgrading an existing space, RASOGUM+ gives you a robust, low-VOC solution that tiles love to stick to, and builders trust.

Quantity

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Features

Fast-Drying Formula – Speeds up installation timelines without compromising performance.
400% Flexibility – Handles movement, minor cracks, and thermal shifts with ease.
BRANZ Appraised & AS4858 Compliant – Built for New Zealand and Australian construction codes.
Low VOC, Non-Hazardous – Safer for installers and indoor environments.
Tile-Ready Surface – Forms a solid base for tile adhesion on walls and floors.
Grey Finish – Easy to see during application, ensuring even coverage.

Where to use it

Use it when you're working with:

Bathrooms, showers, and laundries
Interior concrete or screeded floors
Plasterboard, fibre cement, and wall panels
Under-tile heating systems
Renovations over existing tiles or adhesive residues (with adhesion testing)

How to use

General Application

Primer: Use Primer 101 for old tiles, or Primer T Plus for concrete, screeds, or plaster.
Method: Apply with a nap roller or brush in two coats.

Tip: Allow the first coat to dry completely before applying the second for best sealing.

Compatible Surface

Concrete and cement screeds
Plasterboard and gypsum
Cement-lime mortars
Existing tiles (with correct primer)
Anhydrite screeds

Appearance

Viscous grey paste

Pro Tip

For best performance in bathrooms or high-humidity zones, always prime surfaces properly and ensure each coat of membrane cures fully before tiling.

Downloads

Data Sheet Information Sheet Safety Sheet
point_of_sale Need a product calculation?

Fast-Drying Formula – Speeds up installation timelines without compromising performance.
400% Flexibility – Handles movement, minor cracks, and thermal shifts with ease.
BRANZ Appraised & AS4858 Compliant – Built for New Zealand and Australian construction codes.
Low VOC, Non-Hazardous – Safer for installers and indoor environments.
Tile-Ready Surface – Forms a solid base for tile adhesion on walls and floors.
Grey Finish – Easy to see during application, ensuring even coverage.

Use it when you're working with:

Bathrooms, showers, and laundries
Interior concrete or screeded floors
Plasterboard, fibre cement, and wall panels
Under-tile heating systems
Renovations over existing tiles or adhesive residues (with adhesion testing)

General Application

Primer: Use Primer 101 for old tiles, or Primer T Plus for concrete, screeds, or plaster.
Method: Apply with a nap roller or brush in two coats.

Tip: Allow the first coat to dry completely before applying the second for best sealing.

Concrete and cement screeds
Plasterboard and gypsum
Cement-lime mortars
Existing tiles (with correct primer)
Anhydrite screeds

Viscous grey paste

Pro Tip

For best performance in bathrooms or high-humidity zones, always prime surfaces properly and ensure each coat of membrane cures fully before tiling.

Downloads

Data Sheet Information Sheet Safety Sheet
point_of_sale Need a product calculation?

How to use guide or featured videos

Ready to Use Undertile Liquid Waterproofing Class III Membrane

Conforms to AS4858:2004
BRANZ Appraised (No. 542)
Suitable for internal use. Low VOC content and non-hazardous
Meets Green Building Council of Australia Green Star IEQ-13 requirements
Fast-drying acrylic membrane

PRODUCT DESCRIPTION

Rasogum + is a liquid-applied membrane used for internal wet areas and complies with AS4858 for product performance.
Rasogum + is a fast-drying, ready-to-use polymer-enhanced acrylic membrane that is robust and flexible with 400% elongation.
Rasogum + can be used over both floor and wall substrates, screeds, FLC and under tile heating and will provide a fully sealed surface that can be tiled upon.
Rasogum + has been TANZ appraised as part of a Wet Area tile system and is to be installed as per E3/AS2, utilising the IWAM Code of Practice chapters 1-4.
Rasogum + is a grey membrane applied with a nap roller and brush in a two-coat layer system.

The membrane will be applied over a primed substrate (Technokolla Primer T or primer 101) and meet both E3 and B2 of the NZBC.

APPEARANCE

Viscous paste in white or manhattan colours.

STORAGE

12 months in a dry place, protected from frost.

FIELDS OF USE

- Waterproofing indoor plastered surfaces, gypsum or plasterboard panels and screeds on walls and floors prior to fixing tiles in bathrooms, showers or very damp places.

- Coating for preventing cracks from forming in vertical surfaces both indoors.

- For single-coat application as an adhesion-promoting primer on the remains of old vinyl or polyurethane adhesives prior to glueing tiles on indoor surfaces using cement-based adhesives (carry out an adhesion test).

- Coating for preventing cracks in indoor substrates where small cracks (<1 mm) are liable to form, prior to laying ceramic tiles or natural stone materials.

SUBSTRATES

Cement-based plaster², cement-lime mortar², concrete², cement-based screeds², screeds in anhydrite², gypsum², plasterboard², old tiles¹.

TYPE OF PRIMER TYPE OF APPLICATION

¹ PRIMER-101 brush or roller

² PRIMER-T PLUS brush or roller

Frequently Asked Questions

1. Can I use Rasogum+ in showers or bathrooms?
Yes, it’s designed specifically for internal wet areas like bathrooms, laundries, and showers. It creates a fully sealed, waterproof base under tiles.

2. How long does it take to dry between coats?
Drying time depends on temperature and humidity, but typically the first coat will dry within 2–4 hours. Always ensure it’s fully dry before applying the second.

3. Is a primer required before using Rasogum+?
Yes. Use Primer 101 for old tiles or adhesive residues, and Primer T Plus for new cement-based or plasterboard substrates to ensure adhesion.

4. Can I apply it over under-tile heating systems?
Absolutely. Rasogum+ is flexible enough to handle thermal expansion and is suitable for use over underfloor heating when applied correctly.

5. What’s the best way to apply it?
Use a roller or brush in two coats. Apply evenly and ensure complete coverage—especially at corners and junctions. Avoid pooling.

6. Is Rasogum+ suitable for outdoor areas?
No, it’s rated for internal use only. For external waterproofing, use a waterproofing membrane specifically approved for outdoor exposure.

Shipping and Return Policy

At Surtec, we aim to make your experience as seamless as possible. Orders are processed efficiently through our Auckland branches and distributed nationwide via our growing logistics network. For any queries about delivery times, product availability, or returning an item, feel free to get in touch with our team. We're here to help you keep your projects moving.