Leisure Time Fast Gloss | Spa Shell Polish

• (1) Leisure Time Fast Gloss — 16 fl. oz. (1 pint) reactive-silicone spa surface polish and cleaner
• Child-resistant cap with integrated pour spout
• Application directions printed on the bottle label

• Cleans and polishes in one step — removes waterline scum and dull film while applying protective gloss
• Reactive silicone formula — bonds to acrylic for durable, long-lasting protection
• Lasts up to 6 months per application — a twice-a-year drain-day product
• Restores depth of gloss to dull, faded, or oxidized acrylic
• Water-repellent barrier — scum and minerals can't easily grip the treated surface
• Protects from UV, chemicals, and temperature — the three forces that age acrylic shells
• Buffs without streaking or smearing — easy application, professional-looking result
• Works on all spa finishes — acrylic, gel-coat, fiberglass, and synthetic shell materials
• Universal sanitizer compatibility — chlorine, bromine, ozone, mineral cartridge, biguanide, and saltwater systems
• Made in the USA by Leisure Time, a trusted name in spa care for over 40 years

Spa shells are made primarily of cast acrylic — a durable, glossy plastic that's ideal for the job but vulnerable to three slow-acting threats. UV radiation oxidizes the acrylic surface, breaking down the polished top layer and creating microscopic roughness that scatters light, which is why old shells look dull and chalky. Spa chemicals and high temperatures gradually etch and cloud the surface through repeated exposure. And body oils and dissolved minerals accumulate at the waterline, forming a scum band that bonds to the increasingly rough surface and becomes harder to remove over time. Each of these problems makes the others worse — a duller surface grips more scum, and a scummier surface holds more chemical residue.

Fast Gloss uses reactive silicone chemistry to address all three at once. Unlike a simple wax or wipe-on cleaner that sits loosely on top of the surface, reactive silicones chemically bond to the acrylic, forming a thin, durable, glass-smooth protective layer that becomes part of the surface rather than a coating that washes off. That bonded silicone layer does several things: it fills in the microscopic roughness that makes oxidized acrylic look dull (restoring depth of gloss and visual clarity), it creates a hydrophobic water-repellent surface that scum and minerals can't easily adhere to, and it forms a sacrificial barrier that takes the UV and chemical exposure that would otherwise hit the acrylic directly.

Because the silicone is reactive and bonds to the surface, a single application lasts up to 6 months — far longer than a wipe-on polish. The protective coating is "unaffected by sunlight, temperature, or spa chemicals," which is exactly why it can survive months of submersion in heated, sanitized water while continuing to protect the shell underneath. When you notice waterline scum starting to grip more easily again, or the surface losing its water-bead repellency, that's the signal the coating is wearing and it's time to reapply at the next drain.

Pro Tip: The "apply to a dry surface" instruction is non-negotiable — reactive silicones won't bond to wet acrylic, and applying Fast Gloss to a damp shell just wastes product and leaves streaks. After draining the spa, towel the shell dry and give it 15–30 minutes of air-dry time before applying, especially in corners and around jets where water pools. A completely dry surface is the single biggest factor in how well the coating bonds and how long it lasts.

Standard Application (At Drain-and-Refill, Every 3 Months)

1. Drain the spa completely.
2. Clean the empty shell of any visible scum or debris and rinse.
3. Dry the shell completely. Towel it down, then allow 15–30 minutes of air-dry time. Pay extra attention to corners, footwells, and areas around jets where water pools. Reactive silicones will not bond to a wet surface.
4. Shake the Fast Gloss bottle gently before using.
5. Apply Fast Gloss to the dry surface using a clean, dry cloth.
6. Spread evenly, working one area at a time with a circular, overlapping motion.
7. Allow the product to stand for 10–15 minutes to bond and haze.
8. Wipe off the excess product with a clean, dry cloth — turning the cloth frequently to a fresh surface — and buff to a high luster.
9. Repeat on any area where the desired gloss isn't achieved on the first pass.
10. Refill the spa and resume your normal Simple Spa Care Program.

Spot Treatment (Exterior Panels & Steps)

Fast Gloss can be applied to the spa's exterior acrylic skirt panels and acrylic steps at any time — these surfaces don't need to be empty or drained. Apply to a dry, clean surface using the same circular-motion, stand-15-minutes, buff-off procedure.

Storage & Handling

• Store in original container in a cool, dry location away from direct sunlight
• Keep tightly closed when not in use
• Protect from freezing
• Keep out of reach of children and pets
• Use clean, dry, lint-free cloths for application and buffing — microfiber works best

Pro Tip: Treated shells become genuinely slick when wet — that's the water-repellency working, but it also means the footwell and seats can be more slippery than you're used to right after the first application. Take extra care getting in and out for the first few soaks after applying Fast Gloss, especially with kids or older bathers. The slickness moderates slightly as the coating settles, but a freshly glossed shell is noticeably more slippery than a dull, scummy one — which is a small price for a surface that looks new and cleans effortlessly.

• Product: Leisure Time Fast Gloss Spa Surface Polish & Cleaner
• Size: 1 pint (16 fl. oz. / 473 mL)
• Form: Liquid reactive-silicone polish
• Active Chemistry: Reactive silicones
• Functions: Cleans + polishes + protects (3-in-1)
• Application: Dry shell only — at drain-and-refill, every 3 months
• Durability: Up to 6 months per application
• Coating Properties: water-repellent, UV-resistant, chemical-resistant, temperature-resistant
• Treatment Capacity (1 pint): Multiple full-shell applications per bottle (varies by spa size)
• Shell Compatibility: acrylic, gel-coat, fiberglass, all spa finishes
• Sanitizer Compatibility: Chlorine, bromine, ozone, mineral, biguanide, saltwater systems
• Critical Requirement: Apply to a completely DRY surface only
• Country of Origin: Made in USA
• Brand: Leisure Time Spa Care
• Storage Note: Protect from freezing
• Hazmat Classification: Non-hazardous for standard ground shipping

Fast Gloss is safe for use on all common spa shell materials and is compatible with every sanitizer program. Because it's applied to the empty, dry shell before refilling, it bonds to the surface and is fully cured before water and chemistry return.

• Shell finishes: acrylic, gel-coat, fiberglass, and synthetic shell materials — all spa finishes
• Sanitizer systems: chlorine, bromine, ozone, mineral cartridges (silver/copper), biguanide (Baqua Spa, SoftSoak), and saltwater/salt-generated chlorine systems
• Application surface: spa shell interior above and below the waterline; also usable on the spa's exterior acrylic skirt panels and acrylic spa steps
• Not for use on: the waterline tile (if present), wood cabinetry, or the spa cover — use Cover Care & Conditioner for vinyl cover protection instead
• Companion products: the drain-day trio — Fast Gloss (shell), Jet Clean (plumbing purge), and Filter Clean (cartridge soak); Cover Care & Conditioner completes the picture by protecting the vinyl cover above
• Brand fit: works on shells from Hot Spring, Caldera, Sundance, Jacuzzi, American Whirlpool, Bullfrog, and every other residential spa brand