Princess 35 gelcoat nr

If you contact Princess Boats they should be able to help, they were very helpful with info for my 1976 Princess 33
 
The original gel coat would have faded considerably over last 30 years. Usually anybody who comes to repair gel coat damage will blend the repair to match existing hull colour.
Those DIY tubes of repair gel will appear extremely white when applied to old Princess gel coat.
Have noted gel coat colour variations in the P35, P330 and P45 of the same vintage .
Probably down to how the gel coat has been cared for in the past.
Is it actual impact damage or the usual minor stress cracks etc.
 
The original gel coat would have faded considerably over last 30 years. Usually anybody who comes to repair gel coat damage will blend the repair to match existing hull colour.
Those DIY tubes of repair gel will appear extremely white when applied to old Princess gel coat.
Have noted gel coat colour variations in the P35, P330 and P45 of the same vintage .
Probably down to how the gel coat has been cared for in the past.
Is it actual impact damage or the usual minor stress cracks etc.
absolutely

Even different bits of the boat will be a different colour

Polish a bit of boat next to the repair. Mix your gelcoat on that. Add tiny dots of colour and mix it in until it is invisible. You may have to use green, red, who knows. Use that for the repair. Then clean the mixing palette off.
 
Jep. Not correctly expressed. The prepare with the sand paper brings the original color back. A gel coat match than is not necessary... But:
The color changes from the bow to stern during the years and you have different gel colors on your boat at many places. Often the your eye can not see any difference.
 
Like mark said ,a pro grp person will polish a spot on the boats and mix on there till it’s invisible , doesn’t matter how much you polish you will never get back to true factory original colour on a old boat
 
Hi
The colour code for the P35 (pre-1990) is Scot Balder Cream 3101.
I have a P35 1986 model year, and used the original gelcoat colour when I replaced the aft-deck last year (long story with a happy ending involving new D4-260 engines and sterndrives etc etc)
The new gelcoat mathced the colour of the original gelcoat perfectly!
Good thing from a restauration point of view is that Princess to a very large extent used the gelcoat as filler material on the P35, so the gelcoat thickness exceeds 1cm in certain areas. I have wet-sanded and polished the complete hull, bringing the shine back to "almost as new" levels. Getting rid of oxidation and matching the colour of old and new gelcoat is therfore to a large extend a matter of the elbow power used on the old gelcoat.

My local gelcoat dealer is unfortionately only able to supply the Scot Balder gelcoat in 20kg tinns, so for smaller repairs I did some investigating and learned that RAL9010 was almost the same colour.
Well, it is. RAL9010 has a red shine to it which Cream 3101 does not have so for very small repairs RAL 9010 can be used, but for larger areas or if you are striving for perfect repairs I would try to get hold of Scot Balder Cream 3101 gelcoat.
For reference, the repair in the pictures below was done using RAL9010 gelcoat. (I removed a vent on the stbd side). I'm satisfied with the result.

IMG_1932 (4).JPG
IMG_1937_2.JPG

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