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Clear polymer sealant in 10 oz cartridge

Titebond

Titebond 43991 Polymer Sealant 10 oz Cartridge Clear

SKU CH-RENG-ST9YY

A clear, paintable polymer sealant for windows, doors, siding and trim that stays flexible and resists mildew, mould, UV and weather

  • Clear finish blends with any surface
  • Flexible polymer seal moves with joints up to 50 %
  • Resists mildew, mould, UV and weather for lasting protection
  • Meets AAMA 802.3, AAMA 803.3, ASTM C920 and CAN/CGSB standards
  • Low-VOC formula complies with CDPH v1.2 and LEED v4.1 requirements

Purpose & Audience

Titebond 43991 is a clear polymer sealant supplied in a 10 oz cartridge for window, door, siding and trim applications. It suits professional installers and homeowners who need a flexible, paintable joint that resists mildew, mould, ultraviolet exposure and weather.

Upgrade Context

The product meets AAMA 802.3 -16 Type II, AAMA 803.3 -16, ASTM C920 Type S Grade NS and CAN/CGSB-19 13-M87 MCG-2-25-A-N standards, indicating performance beyond basic latex caulks. The jump is worth it when a joint must stay flexible, remain UV resistant and comply with Class 50 Use T, NT, M, A and G requirements.

Build Integration

The cartridge fits standard caulking guns and applies directly to prepared substrates without special primers. Its paintable finish allows colour matching after cure, while compliance with CDPH v 1.2 -2017, LEED v 4.1 and TT-S-00230C Type II Class A supports projects that require low-emission or certified materials.

Highlights

  • Clear finish blends with any surface
  • Flexible polymer seal moves with joints up to 50 %
  • Resists mildew, mould, UV and weather for lasting protection
  • Meets AAMA 802.3, AAMA 803.3, ASTM C920 and CAN/CGSB standards
  • Low-VOC formula complies with CDPH v1.2 and LEED v4.1 requirements

Specifications

BrandTITEBOND

Questions about this item

What size cartridge does this 43991 sealant come in and will it fit a standard caulking gun?

It is supplied in a 10 oz cartridge that fits a standard caulking gun.

What surface preparation and tooling steps are required when installing this polymer sealant?

Surfaces must be clean, dry, sound and free of dust, oil or old sealant; tool the joint immediately after application before a skin forms.

Does this clear sealant meet AAMA 802.3-16 Type II and ASTM C920 Type S Grade NS for long-term joint movement?

Yes, it complies with AAMA 802.3-16 Type II, AAMA 803.3-16 and ASTM C920 Type S Grade NS, and is rated for Class 50 movement capability.

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