Intumescent Systems Ltd is the manufacturer of Envirograf® products (a range started in 1983) and it quickly evolved to becom ... e a leader in fire containment technology. Its reputation as an innovator and developer of fire protection products is widely recognised within the industry, and its commitment to product research is second to none. Envirograf® is a registered trade mark and it represents the hallmark of the high standards set by the company. Quality control procedures accredited to ISO 9001 standard are implemented throughout the company's operations. Today, no company provides a more comprehensive range of passive fire prevention products than the Envirograf® range from Intumescent Systems Ltd. read more