pvd coating information
a member from this board had a lot of questions about my new PVD PAM111.
so i thought i give my answers in this thread, for more information about PVD-Coating.
i'm not a dealer, i'm a private person and this kind of work with pams is my passion.
my friend, a really good watchmaker-master, i've got from him a lot of experiences.
so i wanted to start a pvd project with a pam111.
i was searching for a pvd-coating company. the most companies makes
pvd-coatings for metallize of tools. some makes that for industry-products.
like doorhandles, car-parts, reflectors, halogen-reflectors, etc.
you have to know pvd is not black. pvd is a kind of synthetic-material and transparent. this transparent-material gets with add-on of color-material the different pvd-coatings-color. black, dark-black, silver, gold, red, blue, etc.
is the object polished -- after pvd-coating the surface is polished.
is the object brushed -- after pvd-coating the surface is brushed.
the pam111 got for the surface the bead-blasting.
so, the bead-blusting ( regular is glass-ceramic bead ) is one of the surface-work.
jewellery and glasses-frames with black pvd-coating that makes special companies. most in swisserland. i had luck. in my location there is one company,
they make pvd-coating with different bead-blasting structures for jewellery and glasses-frames.
one person checked for me the mix of the glass-ceramic-bead with a share of corundum. the mix is 70-75% glass-ceramic-bead and 25-30% corundum.
thats why the surface of the watch looks like the gen pam.
the procedure of pvd-coating is in a high-vacuum machine with 60-300 degrees temperature with a ionic-process.
so, each gasket would burn.
important is that the watch-case are in separates.
first take out the front-glass with gasket. then the bezel.
between the bezel and the case is a teflon-gasket, in the crown is a gasket-o-ring and in the case-tube is a gesket-o-ring, and in the case is a gesket for the case-back.
crown without stem ( the stem is screwed in the crown ).
the crown-guard has a link for the lever, and in this link is a plastic tube with a pin.
important: no bead-blasting in the screw-jack holes and bezel-case-edge and case inside. ( caseback without pvd-coating ).
why no bead-blasting: otherwise no waterresistent.
maybe i could help for a better pvd understanding.
rolli
ps: from palp comes the new thicker crown.
some pictures Pam111 PVD with K.Wong gen Croc: