At Silikal UK, we’re proud to share that our Silikal RU 321 waterproofing resin has passed extensive, independent testing in Australia — achieving Class III, the highest possible rating under two key Australian standards:
- AS/NZS 4858:2004 (Wet Area Membranes)
- AS 4654.1:2012 (Waterproofing Membranes for External Above-Ground Use)
This means RU 321 isn’t just waterproof — it’s proven to be exceptionally reliable, flexible, and durable, even in the most demanding environments.
The resin was rigorously tested by CSIRO Infrastructure Technologies, a NATA-accredited laboratory, and assessed across a range of factors including:
- Water vapour permeability
- Durability under exposure to water, bleach, cleaning agents, and heat
- Flexibility and long-term adhesion to various surfaces
Andy Khoe, Business Development Manager at Silikal Australia, commented:
“These results confirm what we already knew — Silikal RU 321 delivers outstanding performance and long-term reliability. Our customers can trust they’re getting a top-quality product.”
With international recognition and performance validation, Silikal RU 321 is an ideal choice for waterproofing applications where certainty and compliance matter most.