C-4 DOOR HANDLE RENEW / RESTORE
Thank-you for the purchase of our new C-4 Door Handle
Renew/ Restore Product. When installed correctly this product will keep
your door handles protected and looking many years to come.
Please follow the installation and care instructions
exactly to insure you get the maximum usage and benefits from the C-4
Door Handle Renew / Restore Product.
TOOLS AND ADDITIONAL ITEMS REQUIRED
or X-acto knife
Before you begin, separate the left and right product
sections (identification on the back), and match them to the door handle
and lock section of your Corvette. If you wish to make any modifications
to the size, length or height of the product, (not recommended)
now it the time to do so.
Caution you may notice that the face section of your
Corvette’s lock and door handle section are 2.5 cm in height. The C-4
Door Handle Renew / Restore product is approximately 3 cm in height. The
extra length is designed to fold under the bottom of lock and handle
Make sure you have you have the right product #5500 Gloss
Black, #5501 Matte Black, #5503 Clear
KIT #1 KIT #2
If you have purchased Kit #2, it contains a bottle of
special formulated liquid polymer, (DHRLP) which is used to cover badly
faded edges and hard to reach places. DO NOT
MIX THIS PRODUCT WITH ANY PAINT OR THINNERS!
The liquid polymer #DHRLP is available for purchase as a
separate product. Go to
www.c4dhr.com for details
INSTALLATION OF C-4 LOWER DOOR HANDLE SCRATCH GUARD
This product is designed to prevent paint scratches to
the lower section below the door handle.
Use a mild
wax cleaner to remove wax, oil or dirt from your cars paint (under door
Do not use alcohol it may remove the paint!
pieces of masking tape (one on front and one on back) to remove the
clear product from its backing.
the corners of the product, position it in side the lower door handle
section and apply.
a dry cloth over the product.
hours for the product to dry before washing.
STEP # 1 : Surface Preparation
In order for the product to adhere correctly to the door
handle surface, it must be free of all wax, grease, oil or cleaner. The
surface area should be smooth and free of ruff surfaces or paint chip
alcohol ONLY, to clean the surface of the door handle and lock surfaces.
If your door
handles and lock section have uneven surfaces, due to stone chips or
surface damage, use the 600 ultra fine sandpaper (supplied) to smooth
out the door handle and lock section surface. When finished wipe off any
excess material with a dry cloth.
the rubbing alcohol ONLY to completely clean the door handle and lock
section surface and let dry. Make sure surface is clear of all dirt or
KIT #2 ONLY
(DHRLP product) : shake the bottle of
special formulated liquid polymer. Insert the paper guard between the
top door handle & lock section and the corvette body of the handle area.
This will prevent getting the product on the paint of your car. Using
the fine brush supplied, apply the product on the top and side section
in between the handle and door. DO NOT APPLY THE PRODUCT TO THE FRONT
FACE OF THE HANDLE OR LOCK SECTION! Let the product dry for 1 hour. If
any product is applied to the face it will need to be sanded flat or it
will cause an imperfection once the face sections are applied. Note:
(DHRLP product is not included in kit # 1)
CARE OF THE C-4 DOOR HANDLE RENEW/ RESTORE PRODUCT
The product is designed to last up to 8 years under
normal conditions, longer if you care for them. The product will resist
heat, cold, rain, wind, minor impacts, stone chips and will most likely
out last your cars paint. The product is not an armor plate and can
still be damaged. Avoid scratching, pealing or hitting the product. The
product may be cleaned using normal car wash soap, but wipe carefully
You may apply a coat of wax, but only let the wax set for
1 minute and then wipe off slowly and with care. You may apply Armor all
and other silicone shining products, but no products containing ammonia.
For extra protection against road impacts, you may
apply the C-4 DHR clear product # 5503 overtop of the Gloss or
If you have any questions or concerns, please contact us
or e-mail us. Please view our website for product updates, tips or new
STEP # 2 Product Application
Make sure surface is clear of all dirt or debris.
and right door handle and lock sections. Each section is identified by a
Left or Right label on the back of the product.
Start with the left door handle and lock
section of car first. At this point apply the left lock section first.
The c4dhr product has a special application/ protection film applied on
top of the product. Fold down the application film 90 degrees, about 1mm
along the top exposing the black of the product. This is necessary so
that you can line up the C4DHR with the top left and right sections of
the door handle
On a 35-degree angle
form the lock section line up the top left and right edge of the product
with the top left and right sections of the lock section and apply
working downwards. You will also notice that the product is designed to
about ˝ inch under the lock and handle section. Caution, once
product is applied, it cannot be removed or it will lose it adhesive
properties. Once applied slowly peel off the white protection film.
Apply the door handle section using the same procedure.
Line up the left, middle and right section of the product with the door
handle section and apply, working downwards.
applied product with a dry cloth.
product set for 24 hours before attempting to clean or wash.