[TowerTalk] 45g anti-climb

[Roger (K8RI)]

> On 22 Oct 2007 at 13:49, Roger (K8RI) wrote:
>
>>
>>
>>
>> >
>> > How about you cut three sections of 8' marine plywood, and fasten
>> > them to
>>
>> Use, treated, exterior and then give a couple coats of paint after a
>> good priming. The stuff is ugly until painted and may have a few
>> knots, but treated and painted shold last a long time Use a couple
>> pieces of angle (aluminum or steel) fastened on the inside to set on
>> the cross braces to hold it up.
>
> First of all make sure that your pressure treated lumber is very dry. 
> Water is the vehicle to
> get the chemicals into the wood to preserve it, so the water has to get 
> out before the primer

I used an acrylic, latex (water based) primer with a fungacide, let dry for 
about 3 days and then applied a acrylic latex finish coat.  Nary a bit of 
peeling. IIRC I used two coats of the primer as the stuff soaked in like a 
sponge. It took a lot of primer.

> and paint goes on or else if will peel!  Use a very slow dry alkyd primer. 
> Sometimes referred
> to as a long dry oil primer.  The stuff stinks to high heaven, but it will 
> do the job.  Give it a
> good 24 hours dry (high humidity will slow the drying time), then use a 
> high quality Gloss
> 100% acrylic exterior house paint.

I gave it three *hot* summer days.<:-))

73

Roger (K8RI)
>
> Keep your fingers cross, pressure treated lumber is the hardest thing to 
> get paint to stay on!
>
>>
>> > the tower using commercial strapping?   You can even get 4' ty-wraps
>> > from
>>
>> Try long hinges on the inside  so the whole thing wraps around the
>> tower, use a couple of hasps and locks to close it. Use round headed
>> carriage bolts so there is nothing on the outside to be tampered with.
>>
>> This makes one that is easy to put on or take off, yet reliably keeps
>> the less determined off the tower.
>>
>> Roger (K8RI)
>>
>> > HVAC supply stores, and they'll do a good job of holding things in
>> > place.
>> >
>> > That way, in order for someone to climb and  be injured, they would
>> > have to actively remove the strapping, or use a ladder to reach over
>> > the panels.
>> >
>> > A sheet of 1/2" marine grade should run you under 50 bucks.  Don't
>> > use common plywood, though, it will delaminate.  (So will marine
>> > grade, over time. Just not as fast. ...saturate the edges with
>> > paint!)
>> >
>> > n2ea
>> >
>> >
>> > _______________________________________________
>> >
>> >
>> >
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>
>
> Jim/KC4HW
> http://www.AlabamaContestGroup.org
> http://www.AlabamaQSOParty.org
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