Mbali V.
Verified
Water spots on the rear window had been there so long I thought they were permanent. This cleared them in one pass. Glass looked like new without any scratching.
Soft99 Glass Stain Cleaner (80ml)
R 225.00
- Removes hard water spots and mineral scale
- Clears oil film and silicone haze from glass
- Leaves zero residue sealants bond cleanly after
- Safe by hand or machine at low speed
- Mild abrasive cuts mineral scale without scratching
- Restores optical clarity to hazy, stained glass
- Zero residue - sealants bond cleanly straight after
- Free shippingOn orders over R1000
- Fast delivery2-4 business days
- Safe paymentEncrypted checkout
Guaranteed safe checkout
- Visa
- Mastercard
- Apple Pay
- Google Pay
- Capitec
- Stitch
Frequently bought together
Total price R 1,215.00
Glass Decon
Shift what regular cleaners leave behind
Hard water spots, mineral scale and oil film bond to glass at a level that spray-and-wipe cleaners cannot touch. Soft99 Glass Stain Cleaner uses a mild abrasive formula to break that bond and restore true optical clarity without scratching the surface or leaving residue that would compromise your next sealant coat.
Why It Works
Built for glass that won't come clean
Four reasons detailers reach for this before every glass sealant application.
-
Mild Abrasive Formula
Cuts through mineral deposits and oxidised haze without scratching glass surfaces.
-
Zero Residue Left Behind
No oily or soapy film means your glass sealant bonds directly to clean, bare glass.
-
Full Optical Clarity
Restores clear, distortion-free visibility to heavily stained windscreens and windows.
-
Hand or Machine Use
Works at low machine speed for fast decon on large windscreens or by hand for precision.
How It Compares
Glass Stain Cleaner vs a standard glass spray
Standard glass sprays are built for light dust and fingerprints. When the contamination is mineral-based or oxidised, you need something formulated to actually cut it - here is how the two approaches stack up.
| Feature | DetailerSA | Alternative |
|---|---|---|
| Removes hard water spots and mineral scale | Yes | No |
| Clears oil film and silicone haze | Yes | No |
| Safe on all automotive glass surfaces | Yes | Yes |
| Leaves zero residue for sealant bonding | Yes | No |
| Safe to use with a machine polisher | Yes | No |
| Effective on light dust and fingerprints | Yes | Yes |
Pre-Sealant Prep
The clean surface your sealant actually needs
Any glass sealant or rain repellent is only as good as the surface underneath it. Because this cleaner leaves zero oily or soapy residue, your sealant bonds to bare, clean glass rather than a contaminated base - so you get better beading, better sheeting and longer-lasting protection from the first application.
Reviews
What our customers say
4.5
Based on 2 reviews
Fatima A.
Verified
Solid cleaner for stubborn mineral scale. Needed two applications on the worst spots on the windscreen, but the result was proper clarity. Followed up with a glass sealant and the finish is excellent.
Questions
Frequently asked
How do I apply Soft99 Glass Stain Cleaner?
Apply a small amount to a damp microfibre or foam applicator pad, then work it into the glass in small circular sections using light to moderate pressure. Once the compound has lifted the contamination, buff off the residue with a clean, dry microfibre cloth. Follow up immediately with your preferred glass sealant or rain repellent.
Can I use this with a machine polisher?
Yes. The formula is safe to use by hand or with a machine polisher set to a low speed. Using a machine speeds up the removal of heavy mineral deposits and oil film, particularly on large windscreens. Keep the speed low to avoid generating excess heat on the glass.
Which surfaces is it safe to use on?
Soft99 Glass Stain Cleaner is designed specifically for automotive glass - front and rear windscreens, side windows and mirrors. It is not formulated for painted surfaces, plastic trim or polycarbonate headlight lenses.
Will it scratch my windscreen?
The formula uses a mild abrasive specifically selected to cut mineral deposits and oxidised haze without scratching glass. Work with a clean applicator and avoid excessive pressure, and the glass surface will remain intact.
Do I need to apply a sealant afterwards?
A sealant is not strictly required, but the cleaner is formulated to leave zero oily or soapy residue specifically so that a glass sealant or rain repellent can bond cleanly straight after treatment. Using one after cleaning will give you far better long-term water-repellency and protection against re-contamination.
How much product do I need per window?
Because you work the cleaner in small sections, a little goes a long way. The 80ml bottle is sufficient for multiple treatment sessions on a full vehicle. The exact usage depends on how heavily contaminated the glass is - heavily spotted glass will need a bit more product and more working time per section.
Will it remove all water spots, no matter how severe?
Soft99 Glass Stain Cleaner handles the vast majority of hard water spots, limescale and mineral deposits. Extremely deep or etched water damage may require repeated passes or more aggressive glass polishing. For most neglected daily-driver glass, however, a single careful treatment is enough to restore clarity.
Can I use it on tinted windows?
The compound is applied to the outer glass surface and is safe on externally tinted glass. Avoid applying it directly to interior window tint film, as the abrasive action could scuff the film surface. If in doubt, test on a small, inconspicuous area first.