About Nu-Glaze
Born from a real-world problem. Built into a patented solution trusted across climates and countries.
Born from frustration, built on innovation
Nu-Glaze® started with one clear goal: replace failing clay putty and wooden beadings with something much better.
The story behind the solution
Nu-Glaze® emerged as a frustration-born solution by owner/innovator Johan Otto. After replacing failing clay putty caulking and wood beadings for the third time—at significant cost and hassle—Johan knew there had to be a better way.
The vision was simple: create a hard, tough, yet easily workable non-metallic material that provides a 45° slope to finish and protect the 90° glass-frame junction—while remaining cost-effective compared to traditional clay putty. These and many more features were achieved.
Our innovation timeline
Key milestones from idea to international expansion.
The beginning
Frustration with traditional methods sparks the idea for Nu-Glaze. Patent process initiated with international market coverage.
Strategic growth
Costi Buccimazza joins forces, combining technical expertise with business acumen to accelerate development and rollout.
First major success
First commercial installation(affordable housing project) in Vryheid, KZN. Proven under extreme African weather conditions—still performing today. Also in 2012 a DIY project in Langebaan, West Coast, South Africa within 200m from the sea, still looking like it was done yesterday.
Global expansion
Projects across the UK, USA, Australasia, Europe and multiple African nations, including heritage building applications.
Global impact, Local quality
From coastal air to high heat to sub zero temperature. Nu-Glaze is trusted in demanding environments.
International presence
Implemented in the UK, USA, Australia, New Zealand, Malawi, Kenya, Europe, Zimbabwe, and across South Africa.
Heritage preservation
Proven on 300-year-old buildings in Franschhoek—supporting long-term frame preservation for heritage structures.
Extreme weather tested
From harsh coastal conditions to desertlike heat and intense sun, snowy areas and facing severe storms—Nu-Glaze stands strong.
Our product range
Built for compatibility, durability, and compliance.
Universal compatibility
Designed for steel, wood, concrete, and polycrete window and door frames. Multiple use e.g. as finishing trim, closing gaps, thin wire corner trunking, water proofing.
Superior performance
uPVC with ultra-high anti-UV properties—built to outlast traditional clay putty and wood beading.
Compliant & certified
SANS 10400-XA compliant with SANS 613 certification (A3 rating).
Reach & teach program
Empowering approved installers and supporting industry professionals with technical guidance.
We actively seek to empower and launch as many Approved Installers as possible—creating self-reliant business owners rather than merely creating jobs.
Alongside this approach, we supply and technically support glaziers and assist with marketing, serving building contractors, painting professionals, and renovation companies.
Learn About Our Program →Technical specifications
Core fitment, installation and development notes.
Glass/Panel thickness
2mm to 6.38mm(e.g. plywood, polycarbonate, etc.), including safety glass if used in the Full Install. Frontal Install, no limits.
Installation
Special construction-grade neutral cure silicone with mechanical fastening options. Finishing off with Siliconized Acrylic.
Future development
Double glazing and additional profiles already patented.