[pianotech] Vacuum bagging was RE: Fwd: Hybrid pinblocks

[Terry Farrell]

Hi David - Sure I can.  I bought a small vacuum pump - I can't find  
where I bought it from - but there are oodles available and they are  
cheap - less than $200 - and you only need a very small one.

I have custom sized bags made by these folks - I also use their  
Unibond 800 adhesive for laminating (two-part urea formaldehyde):  http://www.vacupress.com/products.htm

Here's a picture of a large bag and the pump - that's all there is to  
it - very simple, and you can roll the bag up for storage (I'm gluing  
up a laminated soundboard panel in this photo):



The bag below is smaller and I use it for pinblocks and rib slabs -  
pictured are two rib slabs being glued up:



And then, of course, there is the REALLY high-tech method involving  
clamps - but it's too complex to describe here - besides, it's  
proprietary..... :



Terry Farrell


On Feb 18, 2010, at 12:06 AM, David Love wrote:

> Terry:
>
> Can you elaborate on the vacuum bag set up that you employ?
>
> David Love
> www.davidlovepianos.com
>
> From: pianotech-bounces at ptg.org [mailto:pianotech-bounces at ptg.org]  
> On Behalf Of Terry Farrell
> Sent: Wednesday, February 17, 2010 8:48 PM
> To: pianotech at ptg.org
> Subject: Re: [pianotech] Fwd: Hybrid pinblocks
>
> Dale Erwin wrote:
> "I went to the trouble of making an air hose press to do the glue up."
>
> Dale, Dale, Dale - VACUUM!!!!!!   WOW, that is quite an impressive  
> array of hoses, but a very simple vacuum-bag system works at least  
> as well - perfectly even pressure over the entire surface. I use a  
> little pump that maybe cost me $200 or so and I had a bag made for  
> me about five-feet by two-feet or so for all my rib laminating and  
> pinblock capping. It is low-cost and works great. I'm sure your air- 
> hose thing works well, but for others considering doing something of  
> this nature, IMHO, vacuum bagging is much easier and low cost.
>
> Terry Farrell
>
>
> On Feb 17, 2010, at 9:19 PM, erwinspiano at aol.com wrote:
>
>

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