... like many of you I have used JB-Weld for many years as a bedding medium. It is inexpensive ... and readily available at Wally World, Lowes, Home Depot and most hardware stores. If one is careful it does an excellent job.
However, it does have one major drawback ... it has a fairly low viscosity in the mixed state .... darn it ... let's be honest ... it runs everywhere. This makes it difficult to use in tight, nadgery spots in the stock ... it won't stay put until you get the action snugged in place ... and not even then !
Was thinking the other evening ... normal practice while sitting in front of the idiot box ... ! Remembered that somewhere in my junk boxes there used to be a small tub of micro-balloons - left over from kayak/canoe mould patching chores. Yep ... there was ... so finshed up by mixing a few small batches of JB with pinches of micro-balloons added to the resin before stirring in the hardener.
It worked ... the resultant uncured mix DOES NOT RUN ... stays where you put it ! One unexpected result though ... the cured JB is not dead hard and brittle like a regular mix ... it has a slight flexibility, yet resists "sharp-edged" compression.
I found that as little as 15-20%, by volume, of micro-balloons to just the resin was sufficient.
Hmmm ! Could this make it more efficient as a bedding agent ? Remember the use of elastomeric materials I proposed years ago as a dampener/tuning medium ... later adopted for the US Olympic Air Rifle team rifles.
Mick - The Fuzzy Limey
However, it does have one major drawback ... it has a fairly low viscosity in the mixed state .... darn it ... let's be honest ... it runs everywhere. This makes it difficult to use in tight, nadgery spots in the stock ... it won't stay put until you get the action snugged in place ... and not even then !
Was thinking the other evening ... normal practice while sitting in front of the idiot box ... ! Remembered that somewhere in my junk boxes there used to be a small tub of micro-balloons - left over from kayak/canoe mould patching chores. Yep ... there was ... so finshed up by mixing a few small batches of JB with pinches of micro-balloons added to the resin before stirring in the hardener.
It worked ... the resultant uncured mix DOES NOT RUN ... stays where you put it ! One unexpected result though ... the cured JB is not dead hard and brittle like a regular mix ... it has a slight flexibility, yet resists "sharp-edged" compression.
I found that as little as 15-20%, by volume, of micro-balloons to just the resin was sufficient.
Hmmm ! Could this make it more efficient as a bedding agent ? Remember the use of elastomeric materials I proposed years ago as a dampener/tuning medium ... later adopted for the US Olympic Air Rifle team rifles.
Mick - The Fuzzy Limey