DYV1973
Mechanical
- Aug 9, 2004
- 75
LS,
For creating a topcoat on an EPS250 part, we have experimented with hot spray polyurea. This material gave enough strength, but stiffness was to low. Product is round (diamters from 200 to 1000 mm), and the basic EPS is 40 mm. Application temperature is from 15°C to 55°C.
Now we are looking for a topcoat that gives also more stiffness, and we are thinking of epoxy or polyester with fibres. We are looking for an E of approx. 100 GPa, so aramide fibres could be a solution.
Can someone give me some advice about:
* which of both (polyester / epoxy) would be preferable
* can the epoxy/polyester with chopped fibres be sprayed easily (we would like to do it ourselves), and what kind of equipment would be needed
* what kind of tolerances can be achieved with spraying
* is there an alternative
Thanks.
DYV
For creating a topcoat on an EPS250 part, we have experimented with hot spray polyurea. This material gave enough strength, but stiffness was to low. Product is round (diamters from 200 to 1000 mm), and the basic EPS is 40 mm. Application temperature is from 15°C to 55°C.
Now we are looking for a topcoat that gives also more stiffness, and we are thinking of epoxy or polyester with fibres. We are looking for an E of approx. 100 GPa, so aramide fibres could be a solution.
Can someone give me some advice about:
* which of both (polyester / epoxy) would be preferable
* can the epoxy/polyester with chopped fibres be sprayed easily (we would like to do it ourselves), and what kind of equipment would be needed
* what kind of tolerances can be achieved with spraying
* is there an alternative
Thanks.
DYV