Electronics Forum | Wed Feb 10 21:41:54 EST 2010 | plaiming
We experiences some failures on PCB assemblies from the field when a methacrylate epoxy adhesive was used to secure some through-hole components to pcb board as reinforcement against vibration. During application, the epoxy covered some smaller SMT c
Electronics Forum | Wed Feb 10 23:48:14 EST 2010 | plaiming
Yes, I looked at the curve but it was high 250F max, but not higher than reflow oven temps..
Electronics Forum | Wed Feb 10 22:32:22 EST 2010 | davef
"Because of the rapid curing features of this product, large amounts of heat are generated when large masses of material are mixed at one time."[ITW Plexus MA310 TDS] Questions are: * Have you looked at the exotherm curve for this stuff? * Can the c
Electronics Forum | Thu Feb 11 09:12:46 EST 2010 | blnorman
Have you checked to make sure the mix ratio is correct? My experience with epoxies is that if the mix ratio is off with too much hardener you will get a much higher exotherm than expected. Modulus is high too, pretty stiff material.
Electronics Forum | Thu Feb 11 09:14:05 EST 2010 | blnorman
One other thing, if you're using this for vibration dampening, would a silicone work? Much lower modulus.
Electronics Forum | Thu Feb 11 12:02:47 EST 2010 | plaiming
We have temporarily switched to an RTV for the vibration reincforcement, but it is not compatible with acrylic conformal coating and we really do not want to switch conformal coatings to a silicone based. Additionally we are testing the product in h
Electronics Forum | Fri May 22 22:18:18 EDT 1998 | David Newman
Hello, I am looking for suggestions for cleaning pcb's after the routing (fabrication) process. Keep in mind that these pcb do not have components intalled on them yet. We have considered pre-drilling the routing plunge points, but cost and capacity
Electronics Forum | Sun May 24 06:02:33 EDT 1998 | Earl Moon
| Hello, | I am looking for suggestions for cleaning pcb's after the routing (fabrication) process. Keep in mind that these pcb do not have components intalled on them yet. | We have considered pre-drilling the routing plunge points, but cost and ca
Electronics Forum | Sun May 10 06:40:28 EDT 1998 | PhingMae
Hello. 1 Could anyone tell me the range of temperature to solder MI components? The process eng is using 400~500 degrees Celcius!! For standard 0805/0603 chips & TH components & also to touch up on ICs. What is the consequence?
Electronics Forum | Mon May 11 13:59:53 EDT 1998 | Chris Fontaine
| Hello. | 1 Could anyone tell me the range of temperature | to solder MI components? The process eng is using 400~500 | degrees Celcius!! For standard 0805/0603 chips & TH components & | also to touch up on ICs. What is the con
