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Redo on Fiberglass Pearl Snare 5.5x16

Posts: 1867 Threads: 179

I learned things doing this one.

1.Do not layer up tinted polyester resin as a color coat on a shell.

This naked shell had a tone when struck with a knuckle.

I killed it with polyester resin. No tone when struck and really heavy in weight. Not to mention that the head rings would hardly fit. OK. Re-start.

So I sanded off all the added resin and a little more of the original shell making it a little thinner and smoother.

The Tone came back.

For color, I tinted shell with auto paint fog coat topped with satin lacquer.

These are really light coats, so the shell still tones.

A lot of inner glass flaws on this one. Would not sand out.

So they are visible if you look real close.

Large holes were filled with tinted polyester resin and fiberglass cloth.

Small holes filled with tinted monomer.

This is the first Pearl shell of any kind I have worked on.

Fiberglassing and painting. Wild stuff man.

Big Learning experience for me.

PNOC, SA

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BLAEMIRE DRUMS
Thanks to Mr. Jerry Jenkins
Posted on 13 years ago
#1
Posts: 1829 Threads: 86

Interesting stuff!!!!

Poly resin definitely would need some glass to maintain tone. But weirdly enough, the poly resin is quite heavy (which is why epoxy ended up being the preferred resin for composites construction) and could kill tone. It is also softer than epoxy. I built one of my first bicycle frames using polyester resin, and while it was easier to work with (in some ways), it was a whole lot heavier. A/B-ing two identically constructed frames (save for the resins), the poly one weighed nearly a pound more!!!!

Also, remember that voids are not nearly as detrimental in fibreglass as they are in carbon fibre construction. But fibreglass is not nearly as high performance of material as carbon fibre. The imperfections you speak of are probably voids in the construction (air bubbles). I imagine that modern layup techniques weren't used in the manufacture of this drum, and modern manufacturing (i.e. vacuum bagging or similar) would have gotten rid of most of these imperfections.

Others who may know more intimately about the constructions should chime in, as these are theories based on my experience from composites construction. I have never built a drum (yet)...

Yeah- I'm THAT guy!!!

Dead dogs like rusty fire hydrants!!!
Posted on 13 years ago
#2
Posts: 1867 Threads: 179

[QUOTE=bunnyman;142181]Interesting stuff!!!!

Thanks B-man

Good info. You sound very knowledgeable regarding these chemical like products.

Perhaps a container of epoxy resin will be added to my shop.

BTW I tuned up the 5.5 x 16 last night.

It is now my favorite snare of the month.

Tight, crisp, full body tone and lots of real estate.

Thanks for Checkin In, SA

BLAEMIRE DRUMS
Thanks to Mr. Jerry Jenkins
Posted on 13 years ago
#3
Posts: 5173 Threads: 188

From green glass drum

I learned things doing this one.1.Do not layer up tinted polyester resin as a color coat on a shell.This naked shell had a tone when struck with a knuckle.I killed it with polyester resin. No tone when struck and really heavy in weight. Not to mention that the head rings would hardly fit. OK. Re-start.So I sanded off all the added resin and a little more of the original shell making it a little thinner and smoother.The Tone came back.For color, I tinted shell with auto paint fog coat topped with satin lacquer. These are really light coats, so the shell still tones.A lot of inner glass flaws on this one. Would not sand out.So they are visible if you look real close.Large holes were filled with tinted polyester resin and fiberglass cloth.Small holes filled with tinted monomer.This is the first Pearl shell of any kind I have worked on.Fiberglassing and painting. Wild stuff man.Big Learning experience for me.PNOC, SA

Geez! That picture look like a Monet painting!

"God is dead." -Nietzsche

"Nietzsche is dead." -God
Posted on 13 years ago
#4
Posts: 1829 Threads: 86

From green glass drum

[QUOTE=bunnyman;142181]Interesting stuff!!!!Thanks B-manGood info. You sound very knowledgeable regarding these chemical like products.Perhaps a container of epoxy resin will be added to my shop.BTW I tuned up the 5.5 x 16 last night.It is now my favorite snare of the month.Tight, crisp, full body tone and lots of real estate.Thanks for Checkin In, SA

West Systems has the best stuff. There are metered pumps for the resin and hardener.

I love composites!!!!! I want to build some, and when my non-compete is over, I am going to build me composite drums!!!!!!!

Yeah- I'm THAT guy!!!

Dead dogs like rusty fire hydrants!!!
Posted on 13 years ago
#5
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