One of the best of UV protection and bird protection – windows and laminated glass and films with  UV 400/410 nm filter. You find specialties for surface protection and products based on lignin. We offer individual solutions for customers looking for chemical contract research in organic synthesis and custom synthesis products tailored and upscaling as well as development cooperation on a national and international level

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Film & Glass K410®

UV shields

Easy handling – GREAT effect: Large glass facades – for example in shopping centres, office buildings, museums, winter gardens, hospitals and detached houses – can be equipped with effective and permanent UV400 and heat protection. […]
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Prevent bird strike


Products that stop birds against hitting windows. It is not always possible for birds to recognise large glass surfaces of buildings in time. In the wolrd up to millions birds a day collide with the glass surfaces at full flying speed.[…]
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UV absorber

semaSORB® absorber

Benefit from our efficient UV absorbers and see for yourself how effective they are. They absorb the highly energetic UV rays in plastics and varnishes and unfold their protective properties by conversion into heat. […]
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Made in Germany0%


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individually solutions.


Exploring connections systematically
and developing convincing products.


The support in your scientific projects
gives you a lead in knowledge.

sema specialises in product development, contract research and custom synthesis. Are you interested in further information or projects? Our employees will gladly advise you.