Chips not filling - Viscosity ratings
Posted: October 14th, 2014, 2:06 pm
Id like to ask a question on behalf of a customer enquiry I received the other day.
He mentioned he had been having difficulty with the Magnibond Resin filling some star chips during the winter months and he wondered if it had anything to do with the viscosity. As you guys know the Magnibond has a rating of 18cps.
For the record the climate here is 10/40 Celsius, thats 50/104 Fahrenheit in old money. The lower number being in the winter of course.
I pointed out that the problem could be a number of reasons. Moisture in the chip, temperature of the glass, impact point not scribed enough, rainX, not using enough resin, suggesting he use a moisture evaporator. I also suggested drilling and slide hammer method, however I’m not a huge fan of this method unless its a last resort.
The customer is very open and has taken it all on board and said he will try the above suggestions. He is a very loyal customer and has called to inform us he has been using another local resin brand with a viscosity of 24cps (brand not known). He tells me the problem does not occur with the other brand.
This makes no sense to me as the higher viscosity rating should make the problem worse if any. Who knows, it could be a placebo effect.
In any event the customer really wants to keep using Magnibond and is asking for our help.
I would appreciate any suggestions from the group as I know we are all from different climates. Im sure there is a solution to be found.
Thanks in advance.
PS. The resin is not out of date (by years) and is alway stored correctly.
He mentioned he had been having difficulty with the Magnibond Resin filling some star chips during the winter months and he wondered if it had anything to do with the viscosity. As you guys know the Magnibond has a rating of 18cps.
For the record the climate here is 10/40 Celsius, thats 50/104 Fahrenheit in old money. The lower number being in the winter of course.
I pointed out that the problem could be a number of reasons. Moisture in the chip, temperature of the glass, impact point not scribed enough, rainX, not using enough resin, suggesting he use a moisture evaporator. I also suggested drilling and slide hammer method, however I’m not a huge fan of this method unless its a last resort.
The customer is very open and has taken it all on board and said he will try the above suggestions. He is a very loyal customer and has called to inform us he has been using another local resin brand with a viscosity of 24cps (brand not known). He tells me the problem does not occur with the other brand.
This makes no sense to me as the higher viscosity rating should make the problem worse if any. Who knows, it could be a placebo effect.
In any event the customer really wants to keep using Magnibond and is asking for our help.
I would appreciate any suggestions from the group as I know we are all from different climates. Im sure there is a solution to be found.
Thanks in advance.
PS. The resin is not out of date (by years) and is alway stored correctly.