X-Virus-Scanned: clean according to Sophos on Logan.com X-PolluStop: No license found, only first 5 messages were scanned Return-Path: Received: from ms-smtp-04.southeast.rr.com ([24.25.9.103] verified) by logan.com (CommuniGate Pro SMTP 5.1c.1) with ESMTP id 1203333 for flyrotary@lancaironline.net; Fri, 23 Jun 2006 08:16:06 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.103; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-111-186.carolina.res.rr.com [24.74.111.186]) by ms-smtp-04.southeast.rr.com (8.13.6/8.13.6) with SMTP id k5NCFIst015364 for ; Fri, 23 Jun 2006 08:15:19 -0400 (EDT) Message-ID: <000c01c696be$b89f2d30$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Spray Lat removal help Date: Fri, 23 Jun 2006 08:15:30 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0009_01C6969D.3145FCE0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2869 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2869 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0009_01C6969D.3145FCE0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Dave, This topic comes up all the time on the RV list. I did a quick seach = of the archieves and here are some of the responses I found. Hopefully, = one of them will fit your needs. You can search the RV arhieves for = other approaches, but these seem to cover most of the solutions. Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com There was a message posted to the list on removing old, dried spraylat, = a latex rubber like protectorant, from a canopy without scratching the plastic. Pressure washing, soaking in water, air pressure etc. was used = to remove it. I had the same problem. Spraylat is supposed to be sprayed = on in heavy layers but I brushed it too thin which caused the product to = dry out fairly severely over time. Removal was accomplished with less than = a quart of "3M Adhesive Remover" obtained from an auto parts store for $8 = + or-. The "Remover" is a clear petroleum based product with no abrasive qualities, does not react with Plexiglas, and is clean to work with but smells and seems like fuel oil or a kerosene type product. Squirt it on = a small area, leave it sit for a few minutes, and wipe the spraylat off = with a clean, soft rag. You may have to repeat the process a couple times to get it all but no mechanical means are needed. My next project will = have the same treatment as the plexi had absolutely no scratches and I was = able to drag air hoses and extension cords across the plexi as well as drop (accidently) clecoes, rivets, etc. on the plexi with no effect while spraylat shielded the plastic. The spray late was only applied exposed areas of the plexi and not under the aluminum or FG fairings. 3M = Adhesive Remover does not harm cured paint but may be difficult to paint over so = I painted the canopy frame complete before application. The remover will easily removed dried masking tape residue as well. I highly suggest = both products. Since the Goo Gone was trying to break down the Spraylat I decided to = follow=20 the posted advice of using 3M brand adhesive remover. It cost me $9.96 = for a=20 quart. I found that by keeping the surface nice and wet I was able to = 'roll=20 back' the Spraylat with my thumbs. It slowly came off....kind of like = peeling sunburn from your shoulders. In about 3 hours I removed ALL the Spraylat = and=20 used only about 1/4 of the can of 3M adhesive remover. The plexi looks = like =20 a million bucks.....so the stuff does work. The canopy with the problem was 11 years old and the coating had dried = so=20 bad it was no different than thin dried latex paint. Spraylat and Vans both=20 had no other suggestions than trying to wet the coating with hot soapy water=20 to soften it. This helped but the coating still required scraping = which=20 would scratch the canopy surface. Some listers on a Long-eze list mentioned=20 using high pressure air and a small nozzle to blow the coating loose. = This was also unsuccessful but gave me an idea! I soaked the canopy in = water for=20 3 days then rented a 3500psi pressure washer and my problem was solved. The=20 pressure washer removed the coating quickly and easily and was welcomed = end to a problem that had started to delay the progress on my kit. Pat Perry Dallas, PA RV-4 fuse almost done Engine being rebuilt Usually the problem occurs because the original coat was too thin. = Recoat the spraylat with another 2 thick coats, wait 24 hours for final cure = and remove. The new coat should remove the old one. Bruce www.glasair.org bruce is right on. I removed some 2 year old spraylat with two liberal = coats of new stuff then peel. Whenever I use it now, I mask the boundary so it doesn't feather near the edge and become a pain to remove. Also I gave = up spraylat brand for borden... yup, I ran out and substituted with some of = the kids elmers glue. Ever since, I buy it at the art supply store for about = 20$ a gallon. I'd swear it's the same stuff...just a tad thinner. Steve DiNieri N221rv I also found the cause was too thin of a layer but Spraylat was about $12/quart + shipping as well as a delay waiting for it so I used 3M Adhesive remover from NAPA for $8, used only about half the quart, and = it just wiped off with a soft rag. Neither product harmed the plexiglas, I was done in one evening and I had coated both inside and out of both the canopy and the windscreen. It was worthwhile, however, as I had no scratches or marks in the plexiglas at all after some two years and literally hundreds of "opportunities" to mare the finish. > Subject: RE: RV-List: Spraylat removal > > > Usually the problem occurs because the original coat was too thin. = Recoat > the spraylat with another 2 thick coats, wait 24 hours for final cure = and > remove. The new coat should remove the old one. Dick DeCramer N500DD RV6 Flying Northfield, MN ----- Original Message -----=20 From: "David Staten" To: "Rotary motors in aircraft" Sent: Friday, June 23, 2006 7:54 AM Subject: [FlyRotary] Spray Lat removal help > This is cross posted to all the groups I am on.. my apologies if = anyone=20 > is bugged by it. >=20 > It appears that we are experiencing some problems with Spray-Lat.. in=20 > that it is being difficult to remove. >=20 > In our instance, it has been on for greater than 2 years.. (i know.. = the=20 > website says after one year it becomes difficult to remove.. too late=20 > for that now..).. > and we are having difficulty removing it without damaging the = underlying=20 > plexi. >=20 > What are some safe techniques for removing well-cured spray-lat from = the=20 > canopy? Soak it under wet linen? Cover it with KY or some other water=20 > based substrate? (Spray lat was water based.. thats where they KY idea = > came from..).. >=20 > Any help would be appreciated. > Dave >=20 > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ > ------=_NextPart_000_0009_01C6969D.3145FCE0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Dave,
 
This topic comes up all the  time on the RV = list.  I did a quick seach of the archieves and here are some of = the=20 responses I found.  Hopefully, one of them will fit your = needs.  You=20 can search the RV arhieves for other approaches, but these seem to cover = most of=20 the solutions.
 
Ed
 
Ed Anderson
Rv-6A N494BW Rotary = Powered
Matthews,=20 NC
eanderson@carolina.rr.com
 
 
There was a message posted = to the list=20 on removing old, dried spraylat, a
latex rubber like protectorant, = from a=20 canopy without scratching the
plastic.  Pressure washing, = soaking in=20 water, air pressure etc. was used to
remove it.  I had the same=20 problem.  Spraylat is supposed to be sprayed on
in heavy layers = but I=20 brushed it too thin which caused the product to dry
out fairly = severely over=20 time.  Removal was accomplished with less than a
quart of "3M = Adhesive=20 Remover" obtained from an auto parts store for $8 +
or-.  The = "Remover"=20 is a clear petroleum based product with no abrasive
qualities, does = not react=20 with Plexiglas, and is clean to work with but
smells and seems like = fuel oil=20 or a kerosene type product.  Squirt it on a
small area, leave it = sit for=20 a few minutes, and wipe the spraylat off with
a clean, soft = rag.  You=20 may have to repeat the process a couple times to
get it all but no = mechanical=20 means are needed.  My next project will have
the same treatment = as the=20 plexi had absolutely no scratches and I was able
to drag air hoses = and=20 extension cords across the plexi as well as drop
(accidently) = clecoes,=20 rivets, etc. on the plexi with no effect while
spraylat shielded the=20 plastic.  The spray late was only applied exposed
areas of the = plexi and=20 not under the aluminum or FG fairings.  3M Adhesive
Remover does = not=20 harm cured paint but may be difficult to paint over so I
painted the = canopy=20 frame complete before application. The remover will
easily removed = dried=20 masking tape residue as well.   I highly suggest=20 both
products.

 
 
 
Since the Goo Gone was trying to break down the = Spraylat I=20 decided to  follow
the posted advice of using 3M brand adhesive = remover. It cost me $9.96  for a
quart. I found that by keeping = the=20 surface nice and wet I was able to  'roll
back' the Spraylat = with my=20 thumbs. It slowly came off....kind of like  peeling

sunburn = from=20 your shoulders. In about 3 hours I removed ALL the Spraylat  and =
used=20 only about 1/4 of the can of 3M adhesive remover. The plexi looks = like =20
a million bucks.....so the stuff does work.
 
The canopy with the = problem was 11=20 years old and  the coating had dried so
bad it was no different = than=20 thin dried  latex paint.  Spraylat and Vans
both
had no = other  suggestions than trying to wet the coating with hot = soapy
water=20
to soften it.   This helped but the coating still  = required=20 scraping which
would scratch the canopy  surface.  Some = listers on=20 a Long-eze list
mentioned
using high pressure air and a small = nozzle to=20 blow the coating  loose.  This

was also unsuccessful = but=20 gave  me an idea!  I soaked the canopy in water
for
3 = days then=20 rented  a 3500psi pressure washer and my problem was solved.
The =
pressure washer removed the coating quickly and easily and was  = welcomed end

to a problem that had started to delay the progress = on =20 my kit.


Pat Perry
Dallas, PA
RV-4 fuse almost=20 done
Engine  being rebuilt

 
 
 
 
Usually the problem occurs because the original = coat was=20 too thin. Recoat
the spraylat with another 2 thick coats, wait 24 = hours for=20 final cure and
remove. The new coat should remove the old=20 one.

Bruce
www.glasair.org


bruce is right on. I = removed=20 some 2 year old spraylat with two liberal coats
of new stuff then = peel.=20 Whenever I use it now, I mask the boundary so it
doesn't feather near = the=20 edge and become a pain to remove. Also I gave up
spraylat brand for = borden...=20 yup, I ran out and substituted with some of the
kids elmers glue. = Ever since,=20 I buy it at the art supply store for about 20$
a gallon. I'd swear = it's the=20 same stuff...just a tad thinner.

Steve = DiNieri
N221rv
 
 
I also found the cause was = too thin of=20 a layer but Spraylat was about
$12/quart + shipping as well as a = delay=20 waiting for it so I used 3M
Adhesive remover from NAPA for $8, used = only=20 about half the quart, and it
just wiped off with a soft rag.  = Neither=20 product harmed the plexiglas, I
was done in one evening and I had = coated both=20 inside and out of both the
canopy and the windscreen.  It was=20 worthwhile, however, as I had no
scratches or marks in the plexiglas = at all=20 after some two years and
literally hundreds of "opportunities" to = mare the=20 finish.

> Subject: RE: RV-List: Spraylat=20 removal
>
>
> Usually the problem occurs because the = original=20 coat was too thin. Recoat
> the spraylat with another 2 thick = coats, wait=20 24 hours for final cure and
> remove. The new coat should remove = the old=20 one.

Dick DeCramer
N500DD RV6 Flying
Northfield,=20 MN
----- Original Message -----
From: "David Staten" <Dastaten@earthlink.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Friday, June 23, 2006 7:54 AM
Subject: [FlyRotary] Spray Lat removal=20 help

> This is = cross=20 posted to all the groups I am on.. my apologies if anyone
> is = bugged by=20 it.
>
> It appears that we are experiencing some problems = with=20 Spray-Lat.. in
> that it is being difficult to remove.
> =
>=20 In our instance, it has been on for greater than 2 years.. (i know.. the =
> website says after one year it becomes difficult to remove.. = too late=20
> for that now..)..
> and we are having difficulty removing = it=20 without damaging the underlying
> plexi.
>
> What = are some=20 safe techniques for removing well-cured spray-lat from the
> = canopy? Soak=20 it under wet linen? Cover it with KY or some other water
> based=20 substrate? (Spray lat was water based.. thats where they KY idea =
> came=20 from..)..
>
> Any help would be appreciated.
> = Dave
>=20
> --
> Homepage:  http://www.flyrotary.com/
> Archive=20 and UnSub:   http://mail.lancaironline.net/lists/flyrotary/> ------=_NextPart_000_0009_01C6969D.3145FCE0--