[Rhodes22-list] Penetrol

[Robert Skinner]

Temperature and time.

Boiled linseed oil will eventually polymerize,
but can take a while to do so, and the process
goes slower in cooler temperatures, being a
chemical transformation.

There is a lower limit for application
temperature in any case.  I stop oiling wood
when the temp goes below 60 degrees.

I use somewhat less dryer in hot temperatures
to allow the linseed oil to penetrate further
before it "kicks".

When you are making up your own formulae,
there is a need to apply windage to compensate
for time, temperature, humidity, and sunlight.

/Robert

Brad Haslett wrote:
> Robert,
> 
> Do you use a catalyst for temperature reasons?
> 
> Brad
> 
> On Wed, Dec 17, 2008 at 10:13 AM, Robert Skinner
> <Robert at squirrelhaven.com> wrote:
>> Japan dryer is available at my Home Depot.
>> Be careful with it - it is a catalyst, not
>> part of the body of a coating.  As such,
>> using more does not necessarily produce a
>> better result - often the opposite.
>>
>> I would not use it in your gel coat
>> refurbish application, as I see no need for
>> a polymerization accelerant there.
>>
>> Others may disagree.  YMMV.
>>
>> As to use on the deck - it MIGHT make it
>> more slippery.  Test.
>>
>> /Robert
>>
>> Brad Haslett wrote:
>>> Robert,
>>>
>>> Good info! I've been fighting the deck issues here (sunshine the
>>> problem) and have been getting 2 years out of so-called 5 year
>>> products.  What is "Japan dryer"? All my dryers are Chinese.  Is that
>>> something I would find in the paint department at Home Depot?
>>>
>>> One of the cautions I've found for penetrol on gel coat on the net is
>>> that it sometimes yellows white gel coat.  Perfect!  My original gel
>>> coat color is supposed to be beige but it gets almost white as it
>>> oxidizes. Now if I could just find some hungry kid to provide the
>>> muscle.  How come you never find Mexicans hanging around the boat
>>> dock?
>>>
>>> Brad
>>>
>>>
>>>
>>> On Tue, Dec 16, 2008 at 10:13 PM, Robert Skinner
>>> <Robert at squirrelhaven.com> wrote:
>>>> Brad,
>>>>
>>>> I got tired of paying huge prices for deck stain
>>>> that just wore/flaked off in a few months.  After
>>>> some research in "Wooden Boat" and other sources,
>>>> I decided to use boiled linseed oil.
>>>>
>>>> Straight linseed took too long to polymerize, so
>>>> I added japan dryer.
>>>>
>>>> With the dryer, the linseed did not penetrate as
>>>> far as I wanted to get protection through a Maine
>>>> winter.
>>>>
>>>> Based on comments on this list and others, I
>>>> added Penetrol to the mix to help the linseed get
>>>> into the wood.  Bingo!
>>>>
>>>> I now use the following mix for decks and stairs
>>>> - both cedar and old-style arsenic-treated PT:
>>>>
>>>> 87% Boiled linseed oil
>>>> 10% Penetrol
>>>> 3%  Japan dryer (adjust for temperature)
>>>>
>>>> Brush on, rub in with a rag (use gloves).  Stop
>>>> playing with it when it starts to drag.
>>>>
>>>> Penetrol also works on the 20 year old gel coat
>>>> on my little Potter 15 day sailer.  Pressure clean,
>>>> dry, wipe on Penetrol with a rag, let it stand for
>>>> a while (depending on temperature) and wipe it off
>>>> before it stiffens.
>>>>
>>>> I'm a believer in Penetrol, but am pretty cautious
>>>> about what kind of surfaces I use it on -- testing
>>>> every one.  I suggest that you test it before
>>>> going whole hog on your gel coat.  YMMV.
>>>>
>>>> /Robert
>>>> ---------------------------------------------------
>>>> Brad Haslett wrote:
>>>>> I know, I know, this has probably been discussed in the archives but I
>>>>> want some fresh thoughts.  A fellow approached me at the dock Saturday
>>>>> and was explaining to his buddy how my boat had more interior room
>>>>> than any other 30 footer, yada, yada, yada.  He and I got in to a
>>>>> discussion of the builder, Leon Slicker, and his reputation for gel
>>>>> coat quality.  I apologized for the condition of mine (dirty, needing
>>>>> polished, etc) and he suggested penetrol.  I've done some research on
>>>>> the net and found some mixed responses.  What say you?
>>>>>
>>>>> Brad
>>>>> __________________________________________________
>>>>> To subscribe/unsubscribe or for help with using the mailing list go to http://www.rhodes22.org/list
>>>>> __________________________________________________
>>>>>
>>>> __________________________________________________
>>>> To subscribe/unsubscribe or for help with using the mailing list go to http://www.rhodes22.org/list
>>>> __________________________________________________
>>>>
>>> __________________________________________________
>>> To subscribe/unsubscribe or for help with using the mailing list go to http://www.rhodes22.org/list
>>> __________________________________________________
>>>
>> __________________________________________________
>> To subscribe/unsubscribe or for help with using the mailing list go to http://www.rhodes22.org/list
>> __________________________________________________
>>
> __________________________________________________
> To subscribe/unsubscribe or for help with using the mailing list go to http://www.rhodes22.org/list
> __________________________________________________
>