Search
Latest topics
» question about the digital tools from the sfg site. by markqz Today at 11:01 am
» Assistance Needed: Sugar Snap Peas Yellowing and Wilting
by Scorpio Rising Yesterday at 8:24 pm
» Mark's first SFG
by markqz Yesterday at 11:23 am
» N & C Midwest—May 2024
by Scorpio Rising Yesterday at 10:48 am
» OMG, GMO from an unexpected place.
by sanderson Yesterday at 1:57 am
» Greetings from Southport NC
by ralitaco 4/29/2024, 9:47 pm
» N & C Midwest: March and April 2024
by Scorpio Rising 4/29/2024, 1:30 pm
» Lovage, has anyone grown, or used
by OhioGardener 4/29/2024, 12:27 pm
» Ohio Gardener's Greenhouse
by OhioGardener 4/28/2024, 10:20 am
» New to SFG in Arlington, Tx
by sanderson 4/26/2024, 3:13 pm
» Soil Blocks: Tutorial In Photos
by OhioGardener 4/25/2024, 5:20 pm
» Manure tea overwintered outside - is it safe to use?
by Mhpoole 4/24/2024, 7:08 pm
» Advice on my blend
by donnainzone5 4/24/2024, 12:13 pm
» Senseless Banter...
by OhioGardener 4/24/2024, 8:16 am
» Rhubarb Rhubarb
by sanderson 4/23/2024, 8:52 pm
» What Have You Picked From Your Garden Today
by OhioGardener 4/23/2024, 1:53 pm
» What do I do with tomato plants?
by SMEDLEY BUTLER 4/23/2024, 1:36 am
» Kiwi's SFG Adventure
by sanderson 4/22/2024, 2:07 pm
» Sacrificial Tomatoes
by SMEDLEY BUTLER 4/22/2024, 10:36 am
» From the Admin - 4th EDITION of All New Square Foot Gardening is in Progress
by sanderson 4/21/2024, 5:02 pm
» Seedling Identification
by AuntieBeth 4/21/2024, 8:00 am
» Happy Birthday!!
by AtlantaMarie 4/21/2024, 6:56 am
» Three Sisters Thursday
by sanderson 4/20/2024, 5:25 pm
» Recommended store bought compost - Photos of composts
by sanderson 4/20/2024, 3:08 pm
» Compost not hot
by Guinevere 4/19/2024, 11:19 am
» Maybe a silly question but...
by sanderson 4/18/2024, 11:22 pm
» Hi from zone 10B--southern orange county, ca
by sanderson 4/18/2024, 12:25 am
» Asparagus
by OhioGardener 4/17/2024, 6:17 pm
» problems with SFG forum site
by OhioGardener 4/16/2024, 8:04 am
» Strawberries per square foot.
by sanderson 4/16/2024, 4:22 am
Google
Is Thompsons water seal safe to put on plywood bottom of SFG?
5 posters
Page 1 of 1
Is Thompsons water seal safe to put on plywood bottom of SFG?
I am new to SFG and excited to get started. My husband is in the process of building it. He decided to put Thompsons water seal on the plywood he does not think it is toxic or will leach into the soil. I beg to differ but am not sure. Does anybody know?
cindgborgg- Posts : 7
Join date : 2014-01-30
Age : 65
Location : Las Vegas
Re: Is Thompsons water seal safe to put on plywood bottom of SFG?
The main ingredient listed on its MSDS is Mineral Spirits - a toxin to the lungs and nervous system in its full strength, but in the amount in Thompson's it may not be an issue.
MSDS on pure mineral spirits says: "Products of Biodegradation:
Possibly hazardous short term degradation products are not likely. However, long term degradation products may arise."
But again, that is for 100% mineral spirits by weight, and Thompson's is 6% by weight. Yours to decide.
GG
MSDS on pure mineral spirits says: "Products of Biodegradation:
Possibly hazardous short term degradation products are not likely. However, long term degradation products may arise."
But again, that is for 100% mineral spirits by weight, and Thompson's is 6% by weight. Yours to decide.
GG
Goosegirl- Posts : 3435
Join date : 2011-02-16
Age : 59
Location : Zone 4A - NE SD
Re: Is Thompsons water seal safe to put on plywood bottom of SFG?
If you are worried, call them and have them give you the information. That would be better than asking here. Just my opinion.
meatburner- Posts : 362
Join date : 2012-10-24
Age : 73
Location : zone 6b, southwest missouri
Thompsons water seal
Thank you for your response. I really do not like the idea but since my husband already put it on and does not want to redo. Short term seems o.k. I guess for now.
Thank you,
Cindy
Thank you,
Cindy
cindgborgg- Posts : 7
Join date : 2014-01-30
Age : 65
Location : Las Vegas
Re: Is Thompsons water seal safe to put on plywood bottom of SFG?
Cindy, I have no issue with what you are doing. I think you are just fine.
meatburner- Posts : 362
Join date : 2012-10-24
Age : 73
Location : zone 6b, southwest missouri
Re: Is Thompsons water seal safe to put on plywood bottom of SFG?
Mel recommends Linseed Oil to treat your boards with. However, it's sticky. I did A LOT of research on this, in order to treat the boards on my raised bed garden lumber and the only suitable product I found was PURE Tung oil. You can buy this at a paint store or they can order it for you. I think I paid around $30 for a quart in Houston. Linseed oil was cheaper and I found it at WalMart. I decided not to use the Linseed Oil because I didn't want everything blowing in the wind to stick to it during our LONG, HOT summers.
Rahab222- Posts : 95
Join date : 2013-03-28
Location : Houston TX
Re: Is Thompsons water seal safe to put on plywood bottom of SFG?
Cindy, Is DH making the boxes out of plywood? Plywood will de-laminate when wet. It's used on the bottoms of table top boxes because it is strong, with sheets going up and down, and left and right. Make sure the plywood is formaldehyde-free for garden boxes. If he wants to coat the boxes, use UNBOILED linseed oil. My DH sometimes does more to a project than I originally ask him to do. Like he's building a house instead of chemical-free, organic as possible, garden structures.
Thompson water seal
I have to say my husband does go overboard sometimes on projects. Like he wanted to make it easier for me and made raised beds so he put plywood on bottom and he sealed them. Now I know better solutions thanks to everyone's response. I had a question on the plywood bottoms making the sheets go up and down and left and right I am not sure what that means, can you explain.
Thanks,
Cindy
Thanks,
Cindy
cindgborgg- Posts : 7
Join date : 2014-01-30
Age : 65
Location : Las Vegas
Re: Is Thompsons water seal safe to put on plywood bottom of SFG?
Cindy, If these are raised beds and he put plywood on the bottoms, it makes sense to me now. He can cut a new, interior sheet of thinner plywood and set that one down on the sealed one. That will provide a fairly good barrier. Water will tend to go downward, not upward to the veggies. Make sure there are little drainage holes drilled through both sheets.
Now let's see if I can describe plywood a little better than I did. Plywood is made with thin sheets of wood, pressure glued together. The grains of every other layer go in a perpendicular direction so the final project in uniformly strong in both directions. Hope this helps.
http://www.madehow.com/Volume-4/Plywood.html
Now let's see if I can describe plywood a little better than I did. Plywood is made with thin sheets of wood, pressure glued together. The grains of every other layer go in a perpendicular direction so the final project in uniformly strong in both directions. Hope this helps.
http://www.madehow.com/Volume-4/Plywood.html
Re: Is Thompsons water seal safe to put on plywood bottom of SFG?
Thank you that makes sense now.
Cindy
Cindy
cindgborgg- Posts : 7
Join date : 2014-01-30
Age : 65
Location : Las Vegas
Similar topics
» thompson's water seal applied to wood for box...
» Redwood Boxes, Seal or Not To Seal?
» Whether or not to cover plywood bottoms?
» When to water?
» water bottles to water box while I'm away?
» Redwood Boxes, Seal or Not To Seal?
» Whether or not to cover plywood bottoms?
» When to water?
» water bottles to water box while I'm away?
Page 1 of 1
Permissions in this forum:
You cannot reply to topics in this forum
|
|