Sika NZ

Sika BlackSeal® Elastic Video & Certificate

Begin the test →

If you're a Licensed Building Practitioner (LBP) or a Certified Drainlayer, watch our 7 minute "How to Correctly Apply BlackSeal Elastic" video, then complete our short online test. Answer all the questions correctly and you’ll receive a rare Sika BlackSeal Elastic Certificate. It's reassurance for your customers that you're 100% up to speed on the correct application of New Zealand's only BRANZ Appraised, below ground, brush-on waterproofing membrane.