I use the Haartz brand name spray cleaner (www.haartz.com makes the top material on the C-5s) and the 303 Fabric Guard.
A properly maintained cloth top should bead water AT ALL times, if it does not the cloth sealant applied to it at the
http://www.haartz.com factory has broken down leaving the top material prone to staining and discoloration. The 303 Fabric Guard is invisible and will reseal the top material.
I have both of these products in stock, the Haartz cleaner is not sold in stores and is hard to find. Both of these run 27.50 plus shipping. Send me an email if you need the correct products for the fabric.
Here is the procedure;
Important: A program of keeping the top clean through regular washings BEFORE it gets dirty, will enhance the life and beauty of an acrylic top and make successive cleaning easier.
Most automatic car washes will not harm sport topping fabrics. Washes with water jets and hanging cloths are preferred. Those using heavy barrel brushes should be avoided. Haartz recommends hand washing in the shade or partial shade, not direct sunlight.
Bird and tree droppings as well as other loose particle soils should be removed immediately. Vacuum the top with a brush attachment and rinse the roof fabric thoroughly with water to remove these loose particle soils. This will also prevent the soils from being redeposited during the cleaning process. Once the top has been rinsed thoroughly, spray apply Haartz Roof Cleaner evenly over the entire top while the top is still wet. Washing with soap and warm water is a safe alternative to Haartz Roof Cleaner, but not as effective. DO NOT USE DETERGENTS. Allow the roof cleaner to soak into the top for 10 to 20 minutes and then scrub the top lightly with a soft nylon brush or terry cloth rag. Rinse thoroughly, preferably until no
remaining soap foam is observed. Allow to dry. Additional cleaning may be
required. It is best to determine this after the top has dried completely. After drying, cleaning must be followed by re-water repelling the fabric with a fluorocarbon system such as 303 High Tech Fabric Guard . Failure to do so will result in rapid resoiling of the unprotected fabric.
The fabric itself does not promote mildew growth. However, mildew may grow on dirt and other foreign substances that are not removed from the fabric. For these more stubborn cases, soak the fabric for approximately 20 minutes in a solution of no more than ½ cup (4 oz.) bleach and ¼ cup (2 oz.) Haartz Roof Cleaner per gallon of water and scrub lightly as indicated above. Excessive soaking with the bleach solution can deteriorate seam threads, so be sure to rinse thoroughly.
Rinse entire vehicle to remove all of the bleach solution from fabric and to prevent streaking on painted and chrome surfaces. Acrylic fabric readily absorbs water but dries quickly. Several cleanings may be necessary.
Do NOT use top dressing cleaners or conditioners containing silicones, organic solvents, petroleum distillates or plasticizers that may permanently stain the fabric. This product is made from 100% solution dyed acrylic fiber which is thermoplastic. Do NOT subject to excessive heat.
The use of stronger cleansers should be left to professionals experienced in handling this type of fabric to avoid discoloration and degradation of the special protective inner layer
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