How do you know if your driveway sealer is bad?

He says asphalt-based sealer is prone to bacterial spoilage, which actually breaks down the asphalt and destroys the sealer. Contractors can detect such spoilage if they notice foaming of the material or volume expansion, usually indicated by bulging of the container. The sealer may or may not smell bad.

How long does asphalt sealer last?

How long does seal coating last? Seal coating can last up to three years if your pavement is in great shape, however, older asphalt may need to be resealed annually.

What do you do with unused driveway sealer?

Sealers that say on the label that they contain petroleum distillates or coal tar are considered hazardous and should be disposed of as part of a hazardous waste collection program. Be aware that many driveway sealers may be latex based but may still contain petroleum distillates or coal tar.

Can you use expired concrete sealer?

One-part products are easily stored for reuse in the future. The effective shelf-life of a one-part product is generally two to four years, though some experts recommend using the sealer up within 18 months to two years.

Does driveway sealer have an expiration date?

Driveway sealer does go bad. Driveway sealers can be stored between one and five years, depending on the type. Most manufacturers do not recommend storing for longer periods because the chemicals break down and are no longer effective. Proper storage is paramount, and if the sealers freeze, they are rendered useless.

How often should asphalt be seal coated?

Typically, sealcoating is recommended every 3 years to provide adequate pavement protection as well as attractive curb appeal for your commercial property or home. Your SealMaster pavement professional can provide the best possible pavement maintenance plan for your unique situation.

How long does sealant last on driveway?

The industry standard is for sealcoating to be replaced every two years, which allows the sealer on your driveway or parking lot to wear away prior to resealing.

Does unopened concrete sealer go bad?

The effective shelf-life of a one-part product is usually two to four years, but some experts recommend using the seal up within 18 months to two years.

How long does concrete driveway sealer last?

Reactive penetrating sealers are the longest lasting concrete sealers, wearing away only if the substrate surface itself wears away. These can last up to 25 years in some cases, but we recommend re-sealing concrete driveways every 5-10 years.

What is the shelf life of Thompson’s Water Seal?

Asphalt sealer and crack filler, if stored above freezing, will be good for a year (opened or unopened). PVC primer and Thompson’s Water Seal™, sealed tightly, can be kept indefinitely (no minimum temperature), as can concrete bonding additive if stored above freezing.