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Race seat, foam


Jan_Coombes

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We used 2 x 1litre tins and it was just about enough for two seats (or in our case one good seat, some left over plus one bodged seat base, half a tonne of foam on the drive, rear wing, side of the car, my hands, the back door, kitchen floor, taps etc etc.....)
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Okay, then *cool* Mike's posting can be found here

 

It goes like this:

 

"Posted - 28 January 2003 8:30

--------------------------------------------------------------------------------

Well, it *must* be time for this again:

 

A friend of mine once built a canoe. He spent a long time on it and

it was a work of art.

 

Almost the final phase was to fill both ends with polyurethane

expanding foam.

 

He duly ordered the bits from Mr Glasplies (an excellent purveyor of

all things fibreglass) and it arrived in two packs covered with

appropriately dire warnings about expansion ratios and some very good

notes on how to use it.

 

Unfortunately he had a degree, worse still two of them. One was in

Chemistry, so the instructions got thrown away and the other in

something mathematical because in a few minutes he was merrily

calculating the volume of his craft to many decimal places and the

guidelines got binned as well.

 

He propped the canoe up on one end, got a huge tin, carefully

measured the calculated amounts of glop, mixed them and quickly

poured the mixture in the end of the canoe (The two pack expands very

rapidly).

 

I arrived as he was completing this and I looked in to see the end

chamber over half full of something Cawdors Witches would have been

proud of. Two thing occurred to me, one was the label which said in

big letters "Caution - expansion ration 50:1" (or something similar)

and the other that the now empty tins said "approximately enough for

20 small craft"

 

Any comment was drowned out by a sea of yellow brown foam suddenly

pouring out of the middle of the canoe and the end of the canoe

bursting open. My friend screamed and leapt at his pride and joy

which was knocked to the ground as he started trying to bale handfuls

of this stuff out with his hands.

 

Knocking the craft over allowed the still liquid and not yet fully

expanded foam to flow to the other end of the canoe where it expanded

and shattered that end as well.

 

A few seconds later and we had a canoe with two exploded ends, a

mountain of solid foam about 4ft high growing out of the middle, and

a chemist firmly embedded up to his armpits in it.

 

At this stage he discovered the reaction was exothermic and his hands

and arms were getting very hot indeed. Running about in small

circles in a confined space while glued to the remains of a fairly

large canoe proved ineffective so he resorted to screaming a bit

instead.

 

Fortunately a Kukri was to hand so I attacked the foam around his

hands with some enthusiasm. The process was hindered by the noise he

was making and the fact he was trying to escape while still attached

to the canoe.

 

Eventually I managed to hack out a lump of foam still including most

of his arms and hands. Unfortunately my tears of laughter were not

helping as they accelerated the foam setting.

 

Seeking medical help was obviously out of the question, the

embarrassment of having to explain his occupation (Chief Research

Chemist at a major petrochemical organisation) would simply never

have been lived down. Several hours and much acrimony later we had

removed sufficient foam (and much hair) to allow him to move again.

However he still looked something like a failed audition for

Quasimodo with red burns on his arms and expanded blobs of foam

sticking everywhere. My comment that the scalding simply made the

hairs the foam was sticking to come out easier was not met with the

enthusiasm I felt it deserved.

 

I forgot to add that in retrospect rather unwisely he had set out to

do this deed in the hallway of his house (the only place he later

explained with sufficient headroom for the canoe - achieved by poking

it up the stairwell) .

 

Having extricated him we now were faced with the problem of a canoe

construction kit embedded in a still gurgling block of foam which was

now irrevocably bonded to the hall and stairs carpet as well as

several banister rails and quite a lot of wallpaper.

 

At this point his wife and her mother came back from shopping......

 

Oh yes - and he had been wearing the pullover Mum in law had knitted

him for his birthday the week before."

😬 😬 😬 *thumbup* *thumbup* *thumbup*

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