Specialized manufacturer of HDPE tanks and stainless steel channels Because resource conservation is an absolute necessity, Collinet, as a total partner, designs and manufactures durable custom-made PE solutions for the storage and pre-treatment of rainwater, wastewater and chemicals. Our double-walled, leak-proof HDPE tanks guarantee exemplary safety. We combine a range of standard products with extensive customization, such as oil and grease separators, pumping stations, inspection chambers, storage tanks and stainless steel channels. Collinet is part of BUILDMAT, a Belgian group of successful companies, active in construction and industry, which focuses on the distribution of innovative products.