MattFossil Posted March 25, 2018 Share Posted March 25, 2018 Hi all, I'd like to blend some glue lines on a piece I had prepped recently. I've read that painting over them with a mixture of elmers white glue, powdered matrix and water can give a fairly good, reversible finish and is cheap! I was just wondering what sort of ratios to go for if anyone has any idea? Cheers, Matt Link to comment Share on other sites More sharing options...
Ptychodus04 Posted March 25, 2018 Share Posted March 25, 2018 Elmer’s glue once set is not reversible. Can you post a few pics of the offending glue lines? Regards, Kris Global Paleo Services, LLC https://globalpaleoservices.com http://instagram.com/globalpaleoservices http://instagram.com/kris.howe Link to comment Share on other sites More sharing options...
MattFossil Posted March 25, 2018 Author Share Posted March 25, 2018 Actually, I'm not overly concerned if it's not reversible as I can sand it off (I've been sanding it anyway!). I'll get a piccy sorted in a bit so you can see what I'm dealing with. Cheers, Matt Link to comment Share on other sites More sharing options...
MattFossil Posted March 25, 2018 Author Share Posted March 25, 2018 Picture is over exposed but you get the idea Link to comment Share on other sites More sharing options...
Phevo Posted March 25, 2018 Share Posted March 25, 2018 What a beauty Link to comment Share on other sites More sharing options...
Ptychodus04 Posted March 26, 2018 Share Posted March 26, 2018 Nice Ichthyosaur @MattFossil! If you have some matrix, powder up a bunch and mix it with your glue (Paraloid is best as it won’t yellow over time). There’s no real ratio, just start mixing and spread it into the crack. Once it is dry, sand it to match the rest of the matrix (it looks pretty smooth from the picture. I would only fill the crack below the skull. The rest appear to be pretty tight and they actually make the slab look good. If the piece is too perfect, it looks fake. People expect to see some cracks. 1 Regards, Kris Global Paleo Services, LLC https://globalpaleoservices.com http://instagram.com/globalpaleoservices http://instagram.com/kris.howe Link to comment Share on other sites More sharing options...
MattFossil Posted March 26, 2018 Author Share Posted March 26, 2018 Thanks chaps. I had a bit of a play with powdered matrix, glue and a drip of water. The colour of the mix looked good but I wasn't at all happy with the results. It looked dark and almost shiny so I sanded it all off again. It's sanded with 40 grit paper which is the roughest I have but it's still very smooth which I think highlights the cracks. I don't have any paraloid or acrylic paints but I think they might be the next thing on the list to try. Cheers, Matt Link to comment Share on other sites More sharing options...
JohnBrewer Posted March 26, 2018 Share Posted March 26, 2018 On 25/03/2018 at 7:50 PM, MattFossil said: Picture is over exposed but you get the idea Jaw drops..... John Map of UK fossil sites Link to comment Share on other sites More sharing options...
Haravex Posted March 26, 2018 Share Posted March 26, 2018 Wow what a beautiful piece was this from germany or UK? Link to comment Share on other sites More sharing options...
Ptychodus04 Posted March 26, 2018 Share Posted March 26, 2018 3 hours ago, MattFossil said: Thanks chaps. I had a bit of a play with powdered matrix, glue and a drip of water. The colour of the mix looked good but I wasn't at all happy with the results. It looked dark and almost shiny so I sanded it all off again. It's sanded with 40 grit paper which is the roughest I have but it's still very smooth which I think highlights the cracks. I don't have any paraloid or acrylic paints but I think they might be the next thing on the list to try. Cheers, Matt Try more matrix in the mix. Also, sprinkle some powered matrix onto the wet glue joint after you have added the glue/matrix suspension to the crack. 1 Regards, Kris Global Paleo Services, LLC https://globalpaleoservices.com http://instagram.com/globalpaleoservices http://instagram.com/kris.howe Link to comment Share on other sites More sharing options...
MattFossil Posted March 28, 2018 Author Share Posted March 28, 2018 I had another go with a more powder heavy mix and dust on top. It's a bit better but I'm still not happy so I've ordered a little tub of acrylic model paint that looks a close match so I'll give that a go and update in due course! It's a UK specimen. Cheers, Matt Link to comment Share on other sites More sharing options...
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