HOT COAT WITH KWICK KICK QUESTION

General Discussion
1

HELLO,

On the picture you can see
one of my last repairs showing hot coat. You can see clearly the empty holes
left after the resin is set.

I used:

1. Kwick Kick by resin
research 12gr RESIN 2,5gr of ADDITIVE F

2. i mixed them under a
hairdryer for 10sec. in order to make the resin with the additive f more thin

3. Then i put 5,4gr of
hardener

4. i used a business cards
to work around the resin so it can cover all the 4oz cloth.

5. When i finish i looked
and there was NO empty holes like the pictures shows.

 

Please inform me if what i
am doing wrong?

Thank you


 

 

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2

eeek fish eyes. Been there oil grease sweat etc. Read stingrays epoxy glassing thread.

3

That’s a contamination issue… my guess is it was on the board. There’s a number of ways it can happen, and a number of ways to make sure it doesn’t. All have been debated to death. All I can say is I’ve not had a single fisheye in YEARS, and this is what I do…

Once the board is laminated, touch it with gloved hands only.

New, disposable bucket and brush

epoxy only paint stick for mixing

Rough up the lamination by lightly scratching with 80 grit on a soft pad. You’re not sanding, just scratching the surface.

Denatured alcohol wipe with a CLEAN, NEW shop towel (the heavy paper towel kind that come in the box from Home Cheapo… they don’t leave fibers like regular paper towels)

Don’t blow the board off with the compressor. The DNA wipe does the job, and no chance of oil in the compressed air.

4

that is a dirty board....shame on you.

probably smeared some surf wax in the final stages of sanding before hot coat.  Or you have some nasty old DNA, or a dirty rag, or a dirty credit card, etc, etc.

5

Just to clarify, did you use a business card to apply the hot coat too? That’s not really the issue, just wondering.

6

Hi Vagouras-

Why 5.4gr hardener and 6gr hardener?  Did you mix extremely well as to get all the hardener completely integrated with the resin?  Did it dry hard and smooth?  Should use a brush to hotcoat to help the resin flow out.  It’s possible the lam was contaminated but doesn’t really look like it from the pic.  Maybe Greg will chime in with some good insight.

Let’s get to the bottom of this…

Brad 

7

Vagouras,

2.5 gr of add F for a total of 17.4 gr of mixed resin is way too much. You should be using 1% to 2% from the total amuont of mixed resin/hardener.

Exemple: for 100 gr of resin/hardener mix ( 69 grams of resin mixed with 31 grams of hardener) you should use 1 or 2 grams of additif F.

8

1cc per ounce of hardener = Laminations

2cc per ounce of hardener = Hot/Gloss Coats

(per FoamEZ website)

9

fiberglasshi,

 

thank you for your post.

yes i used bussines card to work around the hot coat.

10

foamez.com

thank you for your post to.

i mix resin with hardener by weight, so the ratio i have read is for 100gr of resin 45gr of hardener. is that correct?

i mixed it well i belive but i mix it with below procedure:

  1. I put 1% to 2% of additive f in the resin before hardener. (I calculted the ratio to the amount of the resin only)

  2. then i mix it for 10sec under a hair dryer in order to get the mixture more thin.(working temperature was at 20 celcius that day)

  3. then i put the hardener and mix it well all to together.

is that correct??

When the resin set it was smooth, yes.

With regards to the contaminated issue, i am using a glass cleaner caled AZAX or aceton to clean the area before applying hot coat. I always use a hair dryer to dry the area and not touching it with bare hands.

With regards to the brush you are advising me, when i used them i had similar problems with the brush strokes.

It seems like that i have to make some changes to above procedure begging with the mixture.

 

 

 

 

 

11

cesar hi,

I will change my procedure of mixing additive f and resin/hardener mixture.

thank you for your advice

12

Use a brush and brush it at least three times.  You have some surface contamination which will dissolve into the resin if you work it a bit.