Coating Solutions for Hydropower Plants

Teknos’ full range of advanced, high-performance protective coatings protect the structures of an entire hydropower plant from corrosion.

Coatings for hydropower plant structures

Teknos coating solutions protect the structures of an entire hydropower plant from corrosion – both immersed and dry parts. TEKNOMASTIC 80 PRIMER, INERTA 160 and INERTA 165 are all examples of products with long-term track record in immersed use, for both steel and concrete constructions. The products have gone through rigorous laboratory testing.

Teknos sustainable coating solutions

High volume solids coatings of 82-96%
Long maintenance cycles of even 40 years, depending on the selected coating system and environment

IMPORTANT CONSIDERATIONS WHEN COATING HYDROPOWER PLANT STRUCTURES:

Thorough pretreatment with a rough blasting profile
Surface cleanliness tests after pretreatment
Protection of surroundings
Harsh painting conditions with low temperatures and high/varying humidity
Challenging reachability of structures
Need for highly professional contractors

Coating new objects Maintenance painting Product details

Teknos coated objects in hydropower plants

CONSIDERATIONS WHEN COATING NEW OBJECTS

Hydropower plant structures, penstocks, gates as well as sluices have to withstand use even for decades. The structures are immersed or located in the splash zone and have to withstand mechanical and abrasive stress, such as flowing water itself as well as particles that come with the water flow. These factors make hydropower plants one of the toughest environments for coatings to serve.

CONSIDERATIONS WHEN REPAINTING HYDROPOWER STATIONS

The structures are complex to repaint; functions on the plant have to be stopped during maintenance and the structures are physically difficult to reach, handle, pretreat and paint. To make the maintenance cycle as long as possible, the paints need to be super durable and of high quality.

Product details

*In addition to the above-mentioned approvals, there are several approvals by country-specific requirements and standards, such as SILKO, ELFORSK, NS 5417 (Norwegian Hydropower std.), NORSOK M-501 etc.
Product	VOC g/l	Vol. Solids %	DFT range (µm)	Pot life (min)	Equipment requirements	Approvals
INERTA 160	abt. 40	96	500	20	2K airless	Im 1, 2, 3 acc. ISO 12944-5, Abrasion resistance test
The highest resistance against mechanical loads, including the effects of ice
INERTA 165	abt. 100	92	200-300	30	1K airless	Im 1, 2, 3 acc. ISO 12944-5 Abrasion resistance test
Very good resistance against mechanical loads, including the effects of ice
INERTA 165 TIX	abt. 100	92	250-600	30	1K airless	Im 1, 2, 3 acc. ISO 12944-5 Abrasion resistance test
High film build version of INERTA 165
TEKNOMASTIC 80 PRIMER	abt. 200	82	80-230	120	1K airless	Im 1, 2, 3 acc. ISO 12944-5 Im 4 acc. ISO 12944-9 Abrasion resistance test
Several NORSOK M-501 approvals, including systems 1, 3, 7A, 7B and 8A