Tamlyn BrunnoSeal – Adhesive & Sealant - Case of 12

Tamlyn® BrunnoSeal® is a high-performance, self-leveling, fabric-less adhesive and sealant designed for roofing, waterproofing, patching, and general construction repair applications.

It delivers strong adhesion and flexibility across a wide variety of building substrates and is engineered for both wet and dry surface applications.

Formulated as a solvent-free, non-isocyanate hybrid sealant, BrunnoSeal provides long-lasting durability, excellent weather resistance, and reliable bonding performance in demanding exterior environments. It is commonly used by roofing contractors and building maintenance professionals for repairs, flashing, seams, penetrations, and waterproofing details.

The product conforms to ASTM C920 Type S, Grade NS, Class 25 and meets AAMA 808.3 specifications for exterior perimeter sealing applications.

Key Features & Benefits

• Self-leveling hybrid adhesive/sealant
• Fabric-less patch and repair system
• Excellent adhesion to wet or dry surfaces
• Bonds to multiple substrates
• Flexible and durable after cure
• Solvent-free formulation
• Non-isocyanate chemistry
• Paintable after full cure (testing recommended)
• UV and weather resistant performance
• Can be used underwater for temporary or permanent repairs
• Meets ASTM C920 Type S, Grade NS, Class 25
• AAMA 808.3 compliant

Recommended Applications

BrunnoSeal is designed for roofing and general construction sealing applications including:

• Roof leaks and patch repairs
• Flashing and seam sealing
• Around skylights and penetrations
• Gutters and drainage areas
• Cracks, seams, and joints
• Concrete and masonry repair
• Metal roofing systems
• PVC, aluminum, and FRP surfaces
• Glass, wood, and laminate substrates
• Stone, marble, and composite materials
• Exterior waterproofing details

Compatible Substrates

BrunnoSeal bonds to a wide range of materials including:

• PVC
• Aluminum
• Stainless steel
• Galvanized steel
• Glass
• Wood
• FRP (fiberglass reinforced plastic)
• Marble and stone
• Laminates
• Concrete and masonry surfaces

Technical Data (TDS Summary)

• Product Type: Hybrid adhesive/sealant
• Consistency: Thick soft mastic
• VOC Content: < 250 g/L
• Specific Gravity: 0.9 g/ml
• Flash Point: 105°F+
• Service Temperature: 45°F and above
• Cure Type: Moisture/air cure system
• Elongation: High flexibility after cure
• Adhesion: Excellent on most construction substrates
• Water Resistance: Suitable for wet and dry applications

Packaging & Storage

• Available in 300 ml cartridges (10.1 oz)
• Shelf life: 12 months unopened
• Storage temperature: Do not exceed 80°F for best shelf life
• Must be stored in sealed containers
• Protect from extreme heat or freezing conditions

Application Guidelines

• Apply to clean, dry, or properly prepared surfaces
• Remove all dust, rust, oil, and contaminants prior to application
• Apply using trowel, putty knife, or manual application
• Recommended thickness: 1/8" to 1/4"
• Feather edges beyond repair area (2"–4")
• Mesh reinforcement may be used for larger repairs
• Allow proper curing before exposure or painting
• Test compatibility on unknown substrates before full application

Safety Information (SDS Summary)

• Use in well-ventilated areas
• Wear protective gloves and safety glasses
• Avoid prolonged skin contact
• May cause mild irritation to eyes or respiratory system during application
• If contact occurs, flush with water and seek medical attention if necessary
• Keep out of reach of children
• Follow standard construction chemical handling practices
• Dispose of material according to local regulations
• Refer to full SDS for detailed hazard classifications and chemical composition

Performance Standards

BrunnoSeal is tested and formulated to meet:

• ASTM C920 Type S, Grade NS, Class 25
• AAMA 808.3 Exterior Sealing Specification
• Roofing patch and repair system requirements
• General waterproofing and sealant performance standards

Why Contractors Use BrunnoSeal

Contractors choose BrunnoSeal because it:

• Performs in wet or dry conditions
• Bonds to a wide range of construction materials
• Provides fast, effective leak repair capability
• Requires no fabric reinforcement for most applications
• Offers long-term flexibility and durability
• Works in roofing, waterproofing, and general construction repair