Mario van Helmond

Head of Griekspoor Thermal Coatings

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Griekspoor Thermal Coatings bv (GTC) is an international company specializing in developing, testing and applying hard coatings to provide the underlying product with optimal protection against corrosion and/or wear for the maritime and hydraulic industry (piston rods). All Griekspoor coatings are marketed under the trade name TOPCOAT. The main purpose of these coatings is to provide the underlying product with optimal protection against corrosion and/or wear. The coatings applied by GTC can be divided into two main groups: Group 1 consists of the “hard” coatings. These coatings are applied thermally. This means that an energy source is always used (in the form of plasma, HVOF or laser) to create the coating. These hard, highly wear-resistant, and corrosion-resistant coatings can be finish-ground in order to achieve the specified fit and/or coarseness. GTC is capable of applying the coatings up to a length of 23 metres, 1 metre diameter and a weight of 20 tonnes. Group 2 consists of the “soft” coatings. These are epoxy or polyurethane spray paint coatings, in all imaginable colours. In addition to their protective function, these coatings also have an obvious aesthetic purpose. If you want to know more about our paint coatings please look at the dedicated paint website of Griekspoor Paint Systems (only in Dutch). Within the group of soft coatings, GTC integrates a hard thermal metal sprayed primer coating, which, in combination with the soft top coating, creates unique corrosion-resistant properties.


The GTC vision is that every single customer must be given “best-value-for-money”. We do not want to limit this merely to the product, we also aim to offer a “best-value-for-money” guarantee with our customer relationship. We do this by assisting and supporting our customers where necessary, for instance with the help of our in house laboratory. Like every other company GTC depends on its suppliers. This is why we do all that we can to maintain an excellent relationship with our suppliers, and together we continuously endeavour to achieve a mutual “best-value-for-money”.

Brothers Joop Griekspoor and Aad Griekspoor found Gebr. Griekspoor bv. The company operates mainly within the field of civil engineering.
June 2016
Adam catches wind of Dan’s early success and slides into his DM offering help. Dan politely accepts.
April 2020
🚀 relume launches
For various reasons, Dan and Adam decide to turn down a $100,000 investment from Antler and start their own business venture, without taking outside investment.

To do this they would have to build a company that would be profitable in its first year. Not the next Uber of *insert clever idea*.

June 2020
After building 11 websites on Webflow in under 6 weeks as a way to test a number of business ideas, Dan and Adam decide to stick to what they know best and launch Relume - a company that designs and builds beautiful Webflow websites.

“Relume was an opportunity for us to build a profitable business, not a startup that bleeds cash, whilst doing what we love to do. It also allows us to learn about all types of businesses and the problems they deal with. These are all opportunities that we could potentially solve for in the future. For now, our goal is simple, we want to build a kickass business which means we really want our customers and the Webflow community to succeed too.”

Dan, Co-founder of Relume