I have a requirement for a waterproof glue and started to do a bit of
googling about it. It seems that such glues comply with BS EN 204,
but there are different gradings - I've seen D2, D3 and D4.

Being a bit of an anorak I wanted to see what these gradings meant but
seem to have to be forced to buy a copy of the Standard at great
expense. Does anyone know what applies for what would be near enough
garden furniture - it's actually a beehive.

I was looking for the original Cascamite powder but that seems to have
disappeared.

Thanks
Rob

On 01/03/2013 15:49, robgraham wrote:
I have a requirement for a waterproof glue and started to do a bit of
googling about it. It seems that such glues comply with BS EN 204,
but there are different gradings - I've seen D2, D3 and D4.

Being a bit of an anorak I wanted to see what these gradings meant but
seem to have to be forced to buy a copy of the Standard at great
expense. Does anyone know what applies for what would be near enough
garden furniture - it's actually a beehive.

I was looking for the original Cascamite powder but that seems to have
disappeared.

http://www.toolshopdirect.co.uk/shop...ools/Cascamite

Cascamite is rated D3.

Colin Bignell

On 01/03/2013 16:28, Nightjar wrote:
On 01/03/2013 15:49, robgraham wrote:
I have a requirement for a waterproof glue and started to do a bit of
googling about it. It seems that such glues comply with BS EN 204,
but there are different gradings - I've seen D2, D3 and D4.

Being a bit of an anorak I wanted to see what these gradings meant but
seem to have to be forced to buy a copy of the Standard at great
expense. Does anyone know what applies for what would be near enough
garden furniture - it's actually a beehive.

I was looking for the original Cascamite powder but that seems to have
disappeared.

http://www.toolshopdirect.co.uk/shop...ools/Cascamite

Cascamite is rated D3.

Colin Bignell

But you don't want mites in hives. :-(

I have used this:

http://www.screwfix.com/p/evostik-po...ve-310ml/40778

for various external uses. And quite like it. Certainly nicer to use
than some other polyurethane adhesives. However there might ho ho be
some reason NOT to use it on a hive.

--
Rod

On Friday, March 1, 2013 4:28:12 PM UTC, Nightjar wrote:
On 01/03/2013 15:49, robgraham wrote:
snip

I was looking for the original Cascamite powder but that seems to have
disappeared.

http://www.toolshopdirect.co.uk/shop...ools/Cascamite

It Would Be Easier To Read If They Formatted The Text A Bit Better, Wouldn't It...

On 01/03/2013 15:49, robgraham wrote:
I was looking for the original Cascamite powder but that seems to have
disappeared.

It _was_ a favourite of boat builders, many years ago. But AFAIK they've
all gone to epoxy, or possibly polyurethane.

x-posted.

Andy

On Fri, 1 Mar 2013 07:49:03 -0800 (PST), robgraham
wrote:

Being a bit of an anorak I wanted to see what these gradings meant but
seem to have to be forced to buy a copy of the Standard at great
expense. Does anyone know what applies for what would be near enough
garden furniture - it's actually a beehive.

The BS EN 204 durability classes are explained here

http://www.actoon.co.uk/html/glue_texwood.html

http://www.tunnicliffes.co.nz/the_glue/the_glue.htm

I've assembled several (Thornes) beehives and never use glue. They
just need nails for the box-joints. The bees will plug any gaps with
propolis.

--
Reentrant

On Mar 1, 3:49*pm, robgraham wrote:

Being a bit of an anorak I wanted to see what these gradings meant but
seem to have to be forced to buy a copy of the Standard at great
expense.

Go to your local library and read them free online.

John

On 01/03/2013 22:47, John Walliker wrote:
On Mar 1, 3:49 pm, robgraham wrote:

Being a bit of an anorak I wanted to see what these gradings meant but
seem to have to be forced to buy a copy of the Standard at great
expense.

Go to your local library and read them free online.

If you have a library card number you can do it from anywhere - not just
the library.

But having said that Owain has posted pretty much the only bit of the
whole 10 page document that is actually worth having!

(there is a second table that adds some numbers):

Table 2 — Minimum values of adhesive strength for thin boncMines
Conditioning sequences Adhesive strength in N/mm'
Durability classes
Serial number Duration and condition D1 D2 D3 D4
1 7 days' in standard atmosphere =10 =10 =10 =10

2 7 days in standard atmosphere
3 h in water at (20±5)'C
7 days in standard atmosphere =8

3 7 days in standard atmosphere
4 days in water at (20±5)'C =2 =4

4 7 days in standard atmosphere
4 days in water at (20±5)'C
7 days in standard atmosphere =8

5 7 days in standard atmosphere
6 h in boiling water
2 h in water at (20±5)'C =4


--
Cheers,

John.

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On Mar 1, 10:21*pm, Reentrant wrote:
I've assembled several (Thornes) beehives and never use glue. They
just need nails for the box-joints. The bees will plug any gaps with
propolis.

--
Reentrant

Yes - agreed, but this is the roof. I don't like box joints because
you do have to nail them and have done dovetails.
Rob

On 02/03/2013 11:04, Owain wrote:
On Mar 2, 2:29 am, John Rumm wrote:
But having said that Owain has posted pretty much the only bit of the
whole 10 page document that is actually worth having!

I summarised less than 10% of the work for review. ;-)

Well between us, I guess we have reviewed it to the point of if now
being redundant!


--
Cheers,

John.

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