Subscribe to our newsletter

We’re committed to ensuring that your privacy is protected by adhering to the principles of the EU General Data Protection Regulation (GDPR). Your trust is extremely important, so we’ve updated our Privacy Policy to explain how we collect, hold and handle your personal data. Forgeway is wholly committed to the privacy and security of your personal data which we store. We will never pass your details onto a third party without your permission. By providing your details you agree to be contacted by us; and we’ll treat your data with respect. If you would prefer not to hear from us at any time you can get in touch or email: enquiries@forgeway.com

Latest News

Latest News

MS Polymer vs Polyurethane vs Silicone

 

Advantages of MS polymers vs Polyurethanes vs Silicones

Why settle for just a polyurethane or silicone-based adhesive, when you can have the benefits of both in one foil pack/cartridge. Introducing MS polymer adhesive, a one component adhesive which takes ‘all the best bits’ of a one component polyurethane and silicone and combines them into one.

MS or modified silane polymer is unique in that it provides both high weathering resistance (silicone technology) and high-performance properties (polyurethane technology). However, the advantages of MS polymers don’t stop there.

Polyurethane based adhesives provide high strength, but this is only the case when a primer is used. MS polymer adhesives on the other hand can provide very good strength without using a primer. Another big advantage that MS adhesives have over PU adhesives is that they are solvent and isocyanate free. Isocyanates are small highly reactive molecules that are a vital competent of polyurethanes. However, these reactive molecules can be highly dangerous if the correct precautions are not taken. They are very powerful irritants to the mucous membranes of the eyes and gastrointestinal and respiratory tracts. Isocyanates are also sensitizers, meaning they can cause an allergic reaction in normal tissue after repeated exposure. There is evidence that both dermal and respiratory exposure can lead to sensitization. According to Bakerly et al., 2008 ‘exposure to isocyanates has been the leading cause of occupational asthma in the UK for at least two decades’. There has also been reports of several deaths from severe asthma in some sensitized individuals.

Silicone adhesives provide very good chemical and physical resistance and good adherence to low and high energy surfaces, but sadly this is where the advantages end. The disadvantages of silicon are that it has poor mechanical properties, poor over-paint ability, stains easily and are costly.

All our Formoa range are based on an MS-polymer system, ensuring you get the best for your money. So, if you want an adhesive that is non-toxic, weather and stain resistant, durable and shows good adhesion to a wide range of substrates then choose Formoa. For more information on our range of products and other types of adhesives see our website or pages 14-37 of The Fundamentals of Adhesives. 

 

Table 1: Performance comparison of MS, Polyurethane and Silicone sealents. Information in table provided from Adhesives.org (MS Polymers in "Hybrid" Sealents)

Property

MS Polymer

Polyurethane

Silicone

Environmental Friendliness

10

3

8

Non-bubbling

10

6

10

Low temperature gunnability

9

6

10

Slump resistance

10

10

9

Body (tooling)

8

10

8

Weather resistance

8

3

10

Adhesion to various substrates

10

5

8

Mechanical properties

10

10

10

Heat resistance, mechanical stability

9

8

10

Non-dirt pickup

10

8

5

Stain resistance

8

6

8

Paintability with water-based paints

9

10

1

 

 

 

 

 

 

 

Exposure to isocyanates has been the leading cause of occupational asthma in the UK for at least two decades (Bakerly et al., 2008).

×

Bakerly, N.D. , Moore, V.C. , Vellore, A.D. , Jaakkola, M.S. , Robertson, A.S. and Burge, P.S. (2008), “Fifteen-year trends in occupational asthma: data from the Shield surveillance scheme”, Occupational Medicine-Oxford , Vol. 58 No. 3, pp. 169-174.

 

Topics: Primerless Glazing, Formoa, Sealants, Adhesives

 

Subscribe to our newsletter

We’re committed to ensuring that your privacy is protected by adhering to the principles of the EU General Data Protection Regulation (GDPR). Your trust is extremely important, so we’ve updated our Privacy Policy to explain how we collect, hold and handle your personal data. Forgeway is wholly committed to the privacy and security of your personal data which we store. We will never pass your details onto a third party without your permission. By providing your details you agree to be contacted by us; and we’ll treat your data with respect. If you would prefer not to hear from us at any time you can get in touch or email: enquiries@forgeway.com