#PSA my Lovely #Crafting Peeps!
(This includes you if you have ever so much as reattached a broken-off handle to a coffee mug!)
Have found A Useful Site (if you need it) & Lovely Rabbit Hole (if you don't):
A website of recommendations for gluing This To That (#fabric to #leather, #ceramic to #vinyl, #styrofoam to #rubber, etc.), plus a trivia page & funny FAQs.
Also available en français
Enjoy! 
The canopy has been removed from the fuselage so that I can glue in round foam 'rod' that will serve as a seal when the canopy is closed onto the canopy rail.
Tomorrow I will flip the canopy end-for-end and finish gluing the rest of the foam.
Fitting the foam will be through trial and error. In some sections the foam will be too thick...I'll sand it down. In sections where the foam is not thick enough...I'll put a thick layer of tape on the canopy rail.
A good canopy seal helps reduce noise, cold air leaks at high altitude, and can even improve glide performance a tiny bit.
#avgeek #aviation #ElectricAircraft #ExperimentalAviation #homebuilt
#Glider #DIY
#Canopy #RTVsilicone #Adhesive
A few places along the canopy frame bonding flange have a gap in the adhesive.
I pumped some RTV silicone into a syringe and was able to fill the gaps with strong squeezing and not too much mess.
#avgeek #aviation #ElectricAircraft #ExperimentalAviation #homebuilt
#Glider #DIY
#Canopy #RTVsilicone #Adhesive #Humidity #Syringe
Gluing the canopy with RTV silicone.
(This is a 24 hour follow up to:
https://universeodon.com/@KrajciTom/113476957814995339 )
After 24 hours I pried apart my first coupon test sample.
Is the RTV silicone cured?
It's not tacky to the touch, but my nose immediately detected acetic acid. (After prying apart the test piece and letting the RTV get exposed to air over all the bonding surface...soon the vinegar smell was gone.)
Not fully cured.
I'll check my second test piece in another 24 hours....
#avgeek #aviation #ElectricAircraft #ExperimentalAviation #homebuilt
#Glider #DIY
#Canopy #RTVsilicone #Adhesive #Humidity
Gluing the canopy with RTV silicone.
1st - canopy elevated on spacer blocks to apply a bead of adhesive.
2nd - example of the worst, messiest squeeze out of adhesive.
3rd - RTV silicone needs the humidity in the air to cure. In the mountains of southern New Mexico that's in short supply. I'll have a crock pot filled with water to boost the humidity level. This will keep curing from taking too long.
4th - test piece of strips of plexiglass 1-1/2 inches wide...the width of the canopy frame's bonding flange. This practice piece let me determine the desired bead with, showed that the RTV silicone is fairly soft and I can easily compress the bead and it spreads over the entire bonding flange. Also, I'll cut this test strip into a few pieces and evaluate them to determine if curing is complete or not.
I'm hoping I can open up the canopy in 48-72 hours.
#avgeek #aviation #ElectricAircraft #ExperimentalAviation #homebuilt
#Glider #DIY
#Canopy #RTVsilicone #Adhesive #Humidity
Did you know that the oldest known #adhesive was also chewing gum?
#Birch tar is in its simplest form, burned birch #bark. It forms a sticky black pitch that can be used as glue.
Evidence for #human (& #Neanderthal) use has been dated to 200k or the Old #Stone Age.
Birch tar is also a disinfectant & it has been found as a chewing gum in various locations in Europe.
One birch gum piece from 5700 yrs ago, contained a complete human #genome of a woman.
#Adhesive #tape or sticky #notes are easy to attach to a surface, but are difficult to remove. This phenomenon, known as #adhesion hysteresis, can be fundamentally observed in soft, elastic materials
#MaterialScience #sflorg
https://www.sflorg.com/2024/03/ms03082401.html
Thought Neanderthals were stupid? Time for a rethink
https://www.msn.com/en-gb/news/world/thought-neanderthals-were-stupid-time-for-a-rethink/ar-BB1iF8bt?cvid=27bc62f25d274d1af4d498a80bdfed72&ocid=winp2fptaskbarhover&ei=4
Neanderthals Created Stone Tools Held Together by Ochre-Based Adhesives, Scientists Say
https://www.sci.news/archaeology/neanderthal-ochre-based-adhesives-12710.html #archaeology #neanderthal #tools #ochre #bitumen #adhesive #handle #Mousterian #cognition
Reaching for the Gaffer’s tape once again. It’s so useful. Sticky, but doesn’t leave a residue. Get some! 
Does anybody have some tricks for #RockClimbing #shoe #repair or retreading? Perhaps the "black death" sealant that sailors use between slats of teak on the deck of a sailboat?
Rish Pillai shows that shedding their skin allows geckos to replace the #adhesive structures on their feet to get a better grip
https://journals.biologists.com/jeb/article/226/10/jeb245944/309499
#gecko #biology #biomechanics #biomaterials
read the full research at https://journals.biologists.com/jeb/article/226/10/jeb245286/309498
Eugene Terentjev @Cambridge_Uni looks at how liquid crystal elastomer (LCE) research is paving the way for 
materials & appplications related to e.g. #sound isolation pads, reversible #adhesive tapes or heliotracking #solar panels.
https://bit.ly/3JfVE4V
@CORDIS_EU
: https://n.respublicae.eu/ERC_Research/status/1635241808270872578
Dearlazyweb,
As regards use of adhesive-backed foam tape, is soldermask on a PCB considered to have high- or- low-surface-energy? What about bare epoxy-class FR4 without soldermask?
Trying to determine whether normal polyurethane tape withacrylic adhesive would be satisfactory, or whether a VHB tape would be necessary, for mounting an LCD module.
Just a single roll of VHB tape is quite expensive.
#PCB #adhesive
