Questions and Answers

Here you will find answers to common questions about our surface treatments, rust protection, and fire protection. We have gathered technical information, practical tips, and guidance for those who want to know more about Mytec’s services and how we work.

What does “surface treatment” mean and when is it needed?

Surface treatment involves applying protective layers (e.g., painting, coating, thermal spraying) to structures, metal, concrete, or similar materials to prevent corrosion, wear, and other stresses. At Mytec, surface treatment is used both for new constructions and for the maintenance of existing objects—we help increase lifespan and functionality.

Mytec works with everything from large infrastructure projects (such as bridges, high-rise buildings, industrial facilities) to smaller maintenance and service assignments. We have the capacity for both field work and workshop treatment.

We use several methods: including anti-corrosion painting, thermal spraying, rubber lining, polyurea, thermal spraying, and pre-treatment such as blasting, etc. One example: rubber lining with the ProCoat brand—solvent-free and based on recycled rubber.

Yes. Mytec is an authorized company for anti-corrosion painting according to the Swedish authorization for anti-corrosion painting.

Yes, Mytec can offer consultation, control functions, and follow-up. If required, we can offer service plans to ensure that the coating continues to function as intended.

Bitumen is a binder produced from petroleum, known for its excellent adhesion and resistance to moisture, chemicals, and wear. In surface treatment, bitumen is used to create sealing, protective layers on steel, concrete, or wood, especially in harsh environments such as bridge foundations, tanks, and structures near the ground.

Bitumen provides a very dense and chemically resistant surface but is not as mechanically hard as epoxy or polyurea. Therefore, we often choose bitumen where sealing and corrosion protection are prioritized, and epoxy/polyurea where mechanical strength and wear resistance are more important.

We use both zinc-rich primer systems, epoxy- and polyurethane-based multi-layer systems, as well as metallization (thermal spraying with zinc or aluminum). The systems are always adapted to the environment class according to ISO 12944—from C2 (indoor) to C5-M (marine environment).

Pre-treatment is crucial. We perform blasting according to ISO 8501-1, usually to grade Sa 2½, to achieve the correct surface profile and adhesion. After blasting, surface roughness, cleanliness, and climate data are checked before painting begins.

A correctly executed system can provide a 15–25 year lifespan before repainting, depending on the environment class and maintenance. Mytec always documents system choices, paint layers, and thickness to ensure traceability and future maintenance planning.

Passive fire protection, such as fire-retardant painting, is a protective layer that slows down the heating of the structure during a fire. Active fire protection involves systems that detect or extinguish fires, such as sprinklers. Mytec works with passive systems for steel and concrete structures.

Fire-retardant paint is a so-called intumescent coating—during a fire, the paint expands and forms a foam-like insulating layer that protects the steel from reaching critical temperatures (500–600 °C). This delays structural collapse and provides time for evacuation and firefighting.

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