Thank you for the quick reply unclesyd .I am making the glass .Its a 10mm thick glass made into the above said dimension using a hydraulic press and annealed thereafter .
The glass cuts well with the diamond cutter .Creating holes in them and that too as big as this is something new to me...
Does cutting the glass using this system create any tensions along the cut surface of the glass .I am thinking to make holes of diameter 24 cm inside glass slabs of dimension 30 x 30 cm using the water jet.The only doubt is whether the cutting process can result in some tension which need to be...
A problem which we are presently facing is that orthophthalic polyster resin purchased from two different locations are having two different colours .One is yellowish whereas the other tends towards green . Due to the big difference in the colour the products made from these two locations though...
Yes I have a specific question .Can this process of powder coating be used for coating hot glass ( at 700-800 degC) ? I have tried coating glass at the above said temperature but with the iquid based coating the glass cooled too rapidly and the powder did not adhere well nor was it possible to...
I am reading more and more these days on powder coatings .The doubt which I have is whether application in the traditional manner ie,spraying the coating over the substrate in a liquid form is inferior in terms of physical and chemical properties with respect to a coating applied using the...
Demon 3 ,good to see that you are back .Hope the conference went well .
From what you have explained lastly ,it does seem that the metal deactivator will have an effect contrary to what I am expecting . I made a search for the epoxy deactivator with other manufacturer but the term which crops up...
thanks for that tip .it does seem that the technical name for the kind of the resin is ' metal deactivator ' .
I hope this is what demon3 was implying as well .
Will post the results once I make some trials .Presently I am in the process of acquiring this deactivator.
Best Regards,
Nik Smith
Hi Patprimmer ,
I understood that you are being sarcastic ,but your link takes me to the CIBA search engine which I already checked yesterday . I used the words pigments ,carrier resin ,epoxy resin to block retarding action of colouring pigments etc etc but couldn't come up with anything...
Sorry ,but searching using CIBA pigments into google gives me a whole lot of information but I am not able to find this particular kind of resin . It would be easier if someone could tell me the term CIBA uses for such resins .
Sorry to keep pressing on the matter .Please bear with me .
Best...
Thank you Demon 3 and Cory for the replies .Demon 3 ,if I understood correctly then a resin can for example can have a Tg of 50 degC but be cured at 180 degC and once the curing is completed the Tg will be higher compared to what it was, as a result of the cross-linking . Now if I increase the...
Thanks for the reply ,Demon 3. I am interested in the effect of the pigments on the polyester resin curing .
Do you mean to say that the epoxy sold by ciba is used to coat the colouring pigments in order to deactivate them . In that case will the pigments still give the colour which they are...
Hi to all of you ,
I posted two other messaged today and thought of updating you on the progress obtained as as result of the suggestions I got on this thread . By adding filler in the resin,by placing the fibres bidirectionally and by leaving some gaps in between the fibre groups I was able to...
Do the colouring pigments used within a thermosetting resin have an effect on the curing temperature or on the quality of polymerisation which occurs .
I have observed that some colours like red when present in the resin cause the polymerisation to occur to a lesser degree than in a resin which...
