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How do I keep my boxster roof’s original shine/gleam

7.9K views 24 replies 13 participants last post by  GPhilpott  
#1 ·
New bgts 7 months since delivery. Always parked underground so not in the sun. Vacumed and linted regularly. Washed with water only once a month or so even less with no soap detergents.
My problem- in the sun the roof looks “old” to me in other words not as black as in the beginning and also the folding creases are pretty visible
Anything i can do to revive the shine and color back to new condition?
it’s pretty upsetting that a new car maintained so well looks like this already
I haven’t used any sprays or other detailing things. 🙏🏼
 
#2 ·
I don't believe there is anything that will stop/prevent creases, just comes with any type of convertible car.

There are some treatments that can restore the colour, but I don't know how good they are. Approaching a local detailer may be your best option, they should be able to apply a product.
 
#3 ·
#8 ·
Porsche says to not wash the roof more than once or twice a year, and never use pressure or detergent other than specific top cleaner. Roof can be de-spotted with a soft rubber brush but be careful.

I use a horsehair brush to clean—again not too often.

Treat with a roof sealant when water stops beading. Once every year or two depending on water resistance. I use 303 brand but there are others.

My top is now 5+ years old. I brushed it today and it is still black with minimal creases.
 
#10 ·
#11 ·
#13 ·
I have a Miele house vacuum with the brush attachment. Every time I wash the car, i vacuum the top gently but thoroughly before i wash it. I mean, mine is only two months exactly old, but i keep it outside. I think you have some crap imbedded in your thing. I believe the vacuuming is the same as brushing, just gets dirt out. It gets wet a lot my top. I expect to get a new top every once in a long while. I think it is not fading for you, but just either roughed up and gunk imbedded?

I bought the 303 kit. too bad i couldnt have trreated it prior to winter. huge delay in my order prevented that. It does have water beading in cold weather but not warm. Kind of strange :) I know that Porsche puts a medium level protectant on it. I will re-do mine in april with 303. I assume it wont fade much in the North during winter low light months.
 
#14 ·
Give it a good cleaning with the RaggTop, Griots, Adams, or any of the other cloth top specific cleaners and when it's dry use the protectant on it. Start with a good vacuuming treatment, use a good soft brush recommended for cloth tops, wash it with a cloth top cleaner, use microfiber towels to get up as much water as possible, let it dry thoroughly, and apply the sealer/protectant. That should bring back the color and seal it all up. Using regular soaps on the cloth top will leave behind a filmy material that will turn whitish and that's what you're seeing.

Plenty of youtube videos, one of them is by the the guys from the PCA. There's really no need to clean it with water and cleaners monthly. They say to do it when the water doesn't bead up.
 
#15 ·
Give it a good cleaning with the RaggTop, Griots, Adams, or any of the other cloth top specific cleaners and when it's dry use the protectant on it. Start with a good vacuuming treatment, use a good soft brush recommended for cloth tops, wash it with a cloth top cleaner, use microfiber towels to get up as much water as possible, let it dry thoroughly, and apply the sealer/protectant. That should bring back the color and seal it all up. Using regular soaps on the cloth top will leave behind a filmy material that will turn whitish and that's what you're seeing.

Plenty of youtube videos, one of them is by the the guys from the PCA. There's really no need to clean it with water and cleaners monthly. They say to do it when the water doesn't bead up.
Thanks. Will do!
 
#19 · (Edited)
Does anybody use a vacuum cleaner that can vacuum wet surfaces. A friend that has a boxster cleans the top with the 303 cleaner and after rinsing the top when it’s still wet he vacuums the top and says that really sucks up all the dirt as can be seen by the color of the water that fills up in the vacuum cleaner basin. After that when top is dry he uses the 303 fabric guard.
And regarding regular cleaning, not the once in a half a year or couple of months procedure with the 303 guard as mentioned above, isn’t it good to rinse the the top and clean with a cleaner more often as dust and dirt penetrates the top every time we drive the car and mine is a daily. Thanks again for your advice.
 
#20 ·
I don't have personal experience with a wet/dry vac but I can't see why it would be detrimental in using it. I would actually consider it since the goal is to remove as much water as possible to facilitate the drying process so you can add the sealer when it's dry. As far as regular cleanings I would vacuum the top every time I detail the car but as far as soaking the top, using cleaners, and reapplying the sealer I just don't see the need but my option comes more from wha the professionals are saying and not my personal experience.
 
#21 ·
Now that I’ve treated the roof with the 303 cleaner and than fabric guard the top looks much much better
My two cents you can’t not rinse and soap your top for 7 months straight even if the car is always parked under ground and never parked under trees and so forth plus vacuumed and linted weekly
Now question is if i do the cleaning drill without the fabric guard (rinse soap scrub lightly with horse brush and rinse again) every few weeks will that eliminate the fabric guard ?
 
#22 ·
Now that I’ve treated the roof with the 303 cleaner and than fabric guard the top looks much much better
My two cents you can’t not rinse and soap your top for 7 months straight even if the car is always parked under ground and never parked under trees and so forth plus vacuumed and linted weekly
Now question is if i do the cleaning drill without the fabric guard (rinse soap scrub lightly with horse brush and rinse again) every few weeks will that eliminate the fabric guard ?
Over time...yes. However, the fabric guard should last 12 to 24 months or longer, depending on the soap scrubbing frequency and exposure to the elements. Sold our '17 BS in 2021 and the top still appeared showroom new, even though I only applied fabric guard once in my two years of ownership...when we bought her as a CPO in 2019. Then again, she was garage kept and never driven in the rain.
 
#24 ·
A Dyson upholstery brush attachment fits the Shop Vac nicely. I try to remember to vacuum the cloth top before washing (otherwise you're driving mud into the fibers), then I try to keep soap off the top as best I can using the foam cannon for the paint. The idea is to extend the interval as much as possible, 6 months to a year, before you have to use the cleaner and, eventually, reapply the protectant. And I find that pouring the 303 protectant into a disposable paint cup and applying it with a paint brush is the most thorough way of applying the dressing. This regimen worked out beautifully for a few years on my light-tan, Haartz Stayfast replacement cloth top for a 20 year old Miata, and if it really is the same material used by Porsche I will expect my 718's red top to stay bright and clean four years of fun.
 
#25 ·
New bgts 7 months since delivery. Always parked underground so not in the sun. Vacumed and linted regularly. Washed with water only once a month or so even less with no soap detergents.
My problem- in the sun the roof looks “old” to me in other words not as black as in the beginning and also the folding creases are pretty visible
Anything i can do to revive the shine and color back to new condition?
it’s pretty upsetting that a new car maintained so well looks like this already
I haven’t used any sprays or other detailing things. 🙏🏼
I had a BMV convertible for a few years and I intend to keep this routine up when my BGTS arrives in May. I have a nice high pressure blower that I use to spray off water after washing so little to dry, and I use that first on the roof to blow off any dust before anything get brushed into it or wet. Then I got a new horse hair brush from my in-law's barn and lightly brush off the top for any stubborn dust. Living in SoCal I don't get a lot of rain or dirt and that mostly does the trick. I'll rinse with water when rinsing the car when needed but didn't use cleaners. I had it 2 years and always had the water bead up on me so never had to use any kind of sealant. The 303 sounds good if that does start to happen to you.

I almost always put the top up when parking the car outside for sun protection on the leather and just a little security in case some idiot decides to mess with the interior out of petty jealousy. Would often cover even in my garage as can't prevent it from getting very dusty in there. Good luck.