FLEETWOOD RV Class A Gas 2020 Owner'S Manual Download

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Interior & Exterior Care

SECTION FOUR

SEALANT TYPES
Roof:

Dicor 502 is a self-leveling sealant designed for use on
TPO (Thermoplastic Olefin) roof systems . This product
is  used  on  all  roof  openings  such  as  vents,  skylights,
roof-mounted  antennas  and  ladder  roof  mounts .  Do
not  coat  entire  roof .  Remove  old  sealant  that  is  not
adhered . Sealant that is secured need not be removed .
Thoroughly clean and dry surface areas before applying
new sealant .
Lay masking tape around the area to be sealed to limit
sealant from spreading beyond the desired area . Using
a caulking gun, apply new sealant working the caulking
gun in a manner that causes the sealant to fully adhere .
Allow adequate cure time before exposure to rains .

Roof Air Conditioner:

Roof air conditioners use a closed cell foam base gasket .
No  sealants  are  required .  The  roof  air  conditioners
should be checked for tightness by the four mounting
bolts  located  in  each  interior  corner  of  the  air
conditioner roof opening . Torque specification is 40 to
50  in/lbs .  The  base  gasket  should  be  compressed  to
about 1/2” .

Exterior Attachments: Sikaflex 221,
51 and Locktite 5510

Primarily  used  on  the  sidewalls  around  windows,
doors, handles, beltline molding, latches and bases of
surface  mounted  items  such  as  clearance  lights .  Old
peeling sealant should be removed with nylon sticks or
equivalent . Avoid using metal utensils that can scratch
the  painted  surface .  Use  nylon  sticks  or  equivalent .
Avoid  lacquer  thinners  or  ketone  based  solvents  as
these chemicals can damage painted surfaces . Confirm
that surface is clean and dry before a new application .
Cut  the  tube  at  an  angle  with  the  smallest  usable
opening .  Avoid  a  heavy  bead  as  a  little  goes  a  long
way . Use a finger at a 45° angle on the beaded surface
to  smooth  out  product .  Do  not  moisten  finger,  use  a
disposable latex glove .
Keep rags or paper towels handy for clean up . Use care
when applying silicone and plan ahead before starting a
bead . Look for obstacles that may impede application .

Undercarriage: Expanding Spray Foam

This product is used as a sealant where a hole has been
made for items such as water lines or wires that are
coming through a floor or bulkhead opening . Consult
manufacturer data for application and safety instructions .

Windshield: Black Polyurethane

Used  for  sealing  the  windshields  not  to  fill  holes  or
other  imperfections .  Product  comes  in  a  tube  and
applies much the same way as silicone . Clean up using
solvents such as paint thinner . Gloves are required as
product is considered hazardous .
Installing the windshield is a 3-step process using the
following materials:
•  Sika Primer 206
•  Sika Aktivator
•  Sika Adhesive 255FC

WARNING:

Some sealants may be labeled hazardous or require
use  of  petroleum  distillates  for  cleanup .  Use
proper  precautions  as  suggested  by  the  sealant
or  chemical  manufacturer .  Use  of  protective  eye
wear,  gloves,  respirator  or  open  ventilation  may
be  required .  Use  judgment  when  working  with
chemicals .  If  health  limits  exposure  to  chemicals
or  inhibits  skills  or  abilities,  employ  a  qualified
service technician to perform the tasks .

070309C

Black
Urethane Silicone Silicone

Silicone

Typical Side View

Typical Roof Layout

(Inspect each item for sealant integrity. Acryl-R is used as a roof sealant.)

Ladder

Supports

Bath
Vent

Skylight

Kitchen Vent

Television