We know from experience that when it rains in Malta and Gozo, it really rains!!
When the water starts seeping its way in through inadequately waterproofed ceilings and walls, it is time to address the problem.
This is R.A & Sons guide on Waterproofing your property. Besides RALASTIC, we have four new products to be used effectively in waterproofing your home or building.
Planning & Preparation
It is essential to assess the substrate for humidity. This must be addressed first before commencing any work. If you are unsure of the humidity level then please ask for assistance from R.A & Sons.
The area must be cleaned properly. It is to be free from dust and any other loose particles. Any superficial imperfections such as holes or cracks must be filled with any suitable putty or touch up mortar and then smoothed.
Make sure any previously painted surfaces are in good condition and in case of need, remove the decaying, non-adhering and high thickness parts, by sandblasting or brushing them out, as well as any mould or algae present.
It is advisable especially on outside walls to use RAPRIMER. This allows a surface to harden, increasing the resistance in the absorption of the masonry, so that when RALASTIC is applied it can form an effective waterproof layer.
Leave RAPRIMER a minimum of 12 hours and up to 24 hours to dry dependent on weather factors.
RAPRIMER BINDING PRIMER
Application
After RAPRIMER is dry, apply two coats of RALASTIC. These layers must be evenly applied to allow proper compactness and coverage preventing water seepage between the membrane and backing. Seal all the corners and bends between the walls and floor.
RALASTIC can be applied by means of a hard bristle brush or a wool paint roller.
Let 24 hours rest between the 2 layers.
RALASTIC
Advise
It is highly recommended to not use less than 1 Kilo per Sq Metre.
Providing these products have been correctly applied and subject to outside weather conditions, this should last approximately 5 years.
New Products
These are bitumen based products:
RALASTIGUM ST – this can be used with Elasticoating and with white felt to build up layers ensuring effective waterproofing. These can also be purchased from R.A & Sons
RALASTIGUM FR – this product contains fibres
RALASTIGUM ST ANIROOT – containing a repellent against tree and plant roots making it an ideal product to use outside before laying tiles.
RABITUM PRIMER
If you have a waterproofing project that you need any assistance with then please ask the team at R.A & Sons who will be happy to help you in any way
Experience the vibrant journey of compassion and community with the Colours of Malta Calendar 2025, presented by R.A. & Sons Manufacturing. This calendar highlights Malta's rich cultural heritage while featuring a different charitable cause each month. Join us in supporting local foundations and inspiring awareness throughout the year. Discover the stories behind each cause and find meaningful ways to contribute!
This December, RA & Sons Manufacturing is supporting the Foodbank Lifeline Foundation by encouraging customers to donate essential food items that will be passed directly to individuals and families facing hardship. These contributions help the foundation provide emergency food parcels to those most in need, especially during the festive season when demand is at its highest. To see how you can support their work or make a direct contribution, visit
Throughout December, R.A. & Sons Manufacturing is focusing its community efforts on supporting the Foodbank Lifeline Foundation by encouraging customers to donate essential food items. This month’s initiative reflects our commitment to helping families facing hardship, especially during a period when demand for support is at its highest. By joining us and contributing what you can, you help provide emergency food parcels to individuals and households in need across Malta and Gozo. Together, we can offer practical help and a sense of hope to those who need it most.
Whilst every effort has been taken to confirm the accuracy of the information presented in this article, R.A. & Sons Ltd and R.A. & Sons Manufacturing Ltd cannot be held responsible for errors and / or omissions or for any direct or indirect consequences resulting from the use and application of its products.
The company expressly disclaims any and all liability as to any results obtained or arising from any use of its products or reliance on such information; no warranty of fitness for any particular purpose or any other warranty, expressed or implied, is made concerning the goods described or the information provided herein.