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high everybody , we have saggy floor problem in the area of the sink & fridge unit , this is our first caravan purchased 18 months ago , the repair was done prior to our purchase.   

the problem is the area has all ready been repaired badly, a local dealer told me to cut the inner floor ( about 30cm sq ) section out to remove the old resin & polystlrene etc as there is more resin than floor , as so much of it used in the boched repair , im a handy type of person and not afraid to take the project on , but does anybody know how thick the frist layer of floor is and also  is there any wooden runners across sandwiched in the floor ie for strenght ,  i have also been made aware the type of resin kit i need to purchase , i have also been told by other people to use expanding foam filler , im not sure about this , has anybody else used the method ???

kind regards

lee

hi see

hi,delamination...frightening no if you set out your stall and take your time.this is not a two hour job as stated,when you have finished you will know why they charge so much at the caravan repair shop.i have just done ours a few months ago.i will go through the steps best i can.ours had gone in two places,next to the door entrance and next to the sink four feet away.you will find that delamination is where the floor is used most.ie next to the sink and the door entrance.first decide how much delamination you have,ie.2 feet (old school) or 6 feet,this information is required when you go to order your epoxi resin mix.one mix will cover about 3 feet by 3 feet.got mine from barrons £25 for both tins.you also need a large syringe to inject the mixed epoxi resin.this will also sell.also the chemicals (glue) are called apollo 1 and apollo 2.i think the code is A8136.the small tin is the hardener and must be used in the time on the tin.the first thing is to remove all carpets or lino.second(must) tape up all joints and the cowls under the caravan .use a good tape.ie brown packing tape,3 in wide.if you dont the glue will run out on to the ground outside through all the seams.you will not know until you see a pool on the path..third ,support the floor under the van in some way so it cannnot bend when pressure is placed on top,do not push up the floor.you can damage the fittings inside.use wood blocks stacked up just touching the floor on the underside in the same place as the delamination.fourth find a sharp 10mm drill .you need to buy 10 mm round wood to cut and plug the holes,sold in 6 foot lengths.this needs cutting into plugs,half inch long and sanded down at one end to make it go in easy.the next step is to do a test hole,find a place that has no gas pipes on the underside.slowly drill one hole until it only just touches the plywood at the bottom.DO NOT DRILL THROUGH.tape up the drill at this depth,use plenty of tape to stop the drill going deeper than it should.mark out the area of delamination,black marker,in a square grid pattern of 4 inch each way .when finished you will have a large square full of holes to the size of the delamination.ie.3 x 3 feet.clean away all and any dust or shavings.have a large polythene bag ready to put over the square,the glue does not stick to polythene.you need a tin  or old pan to mix into of the correct size for size of mix.a clean strong stick to stir the mix.only mix what you need within the time allowed.start at the rear end injecting the holes one by one until it flows out then plug with the wood plug.when finished ,place poly bag over all holes.put a heavy weight on top ie.wheels and tyres or gas bottles.leave for 24 hours to dry.sand down all plugs until smooth.you must wear a mask for the fumes and open the windows when you are doing the job.rubber gloves are handy too.CHECK UNDERSIDE FOR GAS PIPES BEFORE STARTING.wish i could type.

I followed the above a couple of years ago on my last van, It was a doddle to do and the end result was perfect.

good luck

Bessie

The top sheet of floor is approx 6 to 8 mm thick , there are wooden spars ( battens ) running across the floor , use the proper resin , don't use expanding foam .
Please could you take pictures as you go , sort of step by step , and email them to me with a bit of text for each one , then i'll get them loaded to my website to help others .
http://www.1carpc.co.uk/wcdr/delamination.htm  pictures at the bottom of the page .

atb 

Wizard