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Forum index » Science and Technology » Chem » Coatings
sand on mold
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PepenWen
science forum beginner


Joined: 25 Oct 2005
Posts: 3

PostPosted: Fri Oct 28, 2005 4:29 pm    Post subject: Re: sand on mold Reply with quote

I don't know how to explain "natural resin". It's a translation from dutch.
The dutch word means the sticky substance in pineapples.
I came upon this because I have heard about problems with making
polyurethane blocks. To prevent the surface from being irregular, or to
prevent the polyurethane from sticking to the mold, they used substances
like I told you.

"News" <randypictures@earthlink.net> wrote in message
news:Fpe8f.807$8c5.289@newsread3.news.pas.earthlink.net...
Quote:
Good ideas. Please tell me what "natural resin" is.

"PepenWen" <pepenwen@home.nl> wrote in message
news:djlujo$gh2$1@news5.zwoll1.ov.home.nl...
Mabye you can use natural resin or sillicon grease. But I don't know if
this
reacts with urethane, you should figure this out first.

Mercy

"News" <prodcont@earthlink.net> wrote in message
news:gD01f.6979$zQ3.3729@newsread1.news.pas.earthlink.net...
Can anyone tell me how I can get sand to stick on the surface of a
mold
before I put in casting urethane?





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News1146
science forum beginner


Joined: 28 Oct 2005
Posts: 1

PostPosted: Fri Oct 28, 2005 12:37 am    Post subject: Re: sand on mold Reply with quote

Good ideas. Please tell me what "natural resin" is.

"PepenWen" <pepenwen@home.nl> wrote in message
news:djlujo$gh2$1@news5.zwoll1.ov.home.nl...
Quote:
Mabye you can use natural resin or sillicon grease. But I don't know if
this
reacts with urethane, you should figure this out first.

Mercy

"News" <prodcont@earthlink.net> wrote in message
news:gD01f.6979$zQ3.3729@newsread1.news.pas.earthlink.net...
Can anyone tell me how I can get sand to stick on the surface of a mold
before I put in casting urethane?



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PepenWen
science forum beginner


Joined: 25 Oct 2005
Posts: 3

PostPosted: Tue Oct 25, 2005 6:52 pm    Post subject: Re: sand on mold Reply with quote

Mabye you can use natural resin or sillicon grease. But I don't know if this
reacts with urethane, you should figure this out first.

Mercy

"News" <prodcont@earthlink.net> wrote in message
news:gD01f.6979$zQ3.3729@newsread1.news.pas.earthlink.net...
Quote:
Can anyone tell me how I can get sand to stick on the surface of a mold
before I put in casting urethane?

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News11
science forum beginner


Joined: 06 Oct 2005
Posts: 1

PostPosted: Thu Oct 06, 2005 1:13 am    Post subject: sand on mold Reply with quote

Can anyone tell me how I can get sand to stick on the surface of a mold
before I put in casting urethane?
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