Page 50 - Dzenete Baumaine
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3.2.2 Material Surface Finish Swatch Reference Butyl Rubber Finish
What is Butyl Rubber finish Proccess of the swatch Additional Work
Butyl rubber is a synthetic rubber a copolymer of - Use a heat gun to heat up the template and
isobutylene with isoprene. Butyl rubber is an then use the template to place it over an example
important material for bicycle inner tubes. it is very of the swatch cut out of foam.
strong rubber and flexible. That why it is used in - Apply one coat of grey primer and when dries sand
every car or bicycle. down the template and the edges.
- Then using silicone and black spray paint mix it
Where did the Butyl Rubber come from
Butyl rubber was first produced by American together on a carboard and apply it using paint
chemist William Sparks and Robert Thomas at the brush.
standard oil company in New Jersey in 1937. - When it dried for 15 minutes after I used wallpaper
Butyl rubber is produced by polymerization of scrapper to smooth out the rubber so there was no
about 98 percent of isobutylene with about 2 rough edges.
percent of isoprene. Structurally polyisobutylene - Let it dry again for some while and used scrapper
feature polypropylene but has two methyl groups again, as with first time didn’t smooth out everything.
substituted on every other carbon atom rather then - I used 1000 grid sandpaper to sand down the
one. Polyisobutylene is a colourless to light yellow shine from the rubber.
viscoelastic material. - I used water to wipe down the dirt from sanding
down.
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