Re: sealing containers

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At the horticultural college where I work we have to make use of cracked and seconds pots to be economical. There are two problems to overcome (1) to seal the leaks, and (2) to strengthen the pot wall so it won't collapse under pressure of soil and plant and water. We use a silicone roof sealant to inject a stream of thick, rubbery silicone along the line of the crack on the inside of the pot. Next we use a knife or spatula to spread and smooth the 'glue' over the crack but still leaving a depth of sealant so it hasn't been smoothed absolutely flat. We find it works quite well and seems strong enough even for large pots big enough to put citus trees in.

 

 

 

Trevor Nottle
Manager-Education
TAFE Horticulture Centre
505 Fullarton Road
Netherby
South Australia  5152
AUSTRALIA

 

Tel. 61 +8 +8372 6801    Fax. 61 +8 +8372 6888

>>> "F. M. Ferrari" <fm4re@swbell.net> 02/13/01 01:40pm >>>
Hello!  Just joined this list and finding it valuable.  Until I get the
nerve to ask my list of questions, I can contribute to this request.

My suggestion for sealing the pots is one that I've used for years for
cracked pots.  I just take plastic trash bags that best fit the pot and fill
with dirt.  Remember to poke holes for the water to run out and proceed as
in potting in general.

Fran
Oklahoma City, OK, USA
Zone 7