Stanley S421 All-Purpose RTV Silicone Sealant, 100% Waterproof Clear Caulk, Industrial-Grade Silicone for Kitchen, Bathroom, Shower, Window, Door, Indoor & Outdoor Use, 10.1 oz (Pack of 1)

• 100% Silicone Sealant for Long-Lasting Sealing: Formulated with pure silicone for exceptional elasticity and durability. Ideal for sealing joints and gaps on windows, doors, kitchens, bathrooms, and more.
• Flexible & Crack-Resistant Over Time: Once cured, it maintains its elasticity and resists cracking, discoloration, and shrinkage. Making it reliable for long-term indoor and outdoor applications.
• Excellent Adhesion to Non-Porous Surfaces: Bonds well to materials such as glass, ceramic, enamel, aluminum, stainless steel, painted wood, and various plastics. Suitable for professional and home use.
• Waterproof & Weather-Resistant Performance: Provides a watertight seal that withstands exposure to water and extreme weather conditions, perfect for areas exposed to moisture and temperature changes.
• Wide Application Temperature Range: Recommended application and surface temperatures: +41°F to +104°F (5°C to 40°C). Store in a cool, dry environment between +41°F to +77°F (5°C to 25°C) for optimal shelf life and performance.

Return Policy
We accept returns on most items within 30 days of purchase. However, the following items are NOT eligible for return:

• Built-to-order or custom-made products (e.g., Rolair Air Compressors)
• Gas-powered equipment (e.g., Generators, Power Washers, Chainsaws)
• Pneumatic tools (e.g., Nail Guns, Paint Sprayers)
• Ladders, scaffolding, or climbing equipment
• Fall protection equipment (e.g., Lanyards, Harnesses)
• Batteries
• Used consumables or accessories (e.g., Sandpaper, Saw Blades)
• Guide rails longer than 95 inches
• Cast iron equipment (e.g., Table Saws, Drum Sanders)
• Clothing (all sales are final)

For more details on eligible items and our full return instructions, please click here to view our complete policy.

We’re dedicated to offering you the best price on high-quality products from trusted sources. If you find the exact same item from an authorized seller at a lower price—including all shipping, handling, taxes, and any additional fees—we’re happy to match it.

To request a price match, simply contact our Customer Support team with the following details:

• Your order number and purchase date
• The product identifier or model number
• A link to the competitor’s advertisement showing the lower price

Once we verify the details, we will issue a credit (if applicable) within two business days.

Terms & Conditions:

• The competitor must be an authorized retail dealer.
• The product must be identical, in stock, and available with the same features and warranty.
• This offer does not apply to auction sites, clearance events, special promotions, misprints, or limited-time offers.
• Price match requests must be made within 30 days of your purchase.
• Refunds will be processed in the original form of payment.
• Certain items, such as heavy equipment, may be excluded.

We stand by our commitment to bring you the best deal possible!