Tower Tech²
Tower Tech² is a 1-component, high-performance, gun-grade Urethane Modified Acrylic Sealant. Superior adhesion to most substrates with 800% elongation. ASTM C-920 Class 25, ASTM E84 Class A, Lifetime warranty.
Colors:
TOWER TECH² ™ is a 1 component, high performance, gungrade, Urethane Modified Acrylic Sealant. Premium technology reduces dirt pickup, eliminates yellowing and shiners. Internally plasticized resin requires no mixing or priming to bond to most materials, including concrete, wood and masonry. TOWER TECH² ™ has superior adhesion, durability, 50% total joint movement and 800% elongation. It forms an airtight, water resistant seal offering exceptional protection from environmental conditions. Once cured, the bead is mildew resistant. Tower Tech² ™ is safe for UV exposure and will not discolor.
- 1:Exceeds ASTM C-920, Grade NS, Class 25. Use M, G, A, O & NT
- 2:Exceeds ASTM C-834, Type OP, Grade -18°C
- 3:Exceeds Fed. Spec TTS-00230C, Type II, Class A
- 4:Meets ASTM E84 Class A Rating according to Flame Spread Index and Smoke Developed Index Values
- 5:Up to 2” in properly designed joints
- 6:800% Elongation
- 7:Superior Adhesion
- 8:Internally Plasticized
- 9:Exceptional Adhesion and Durability
- 10:Cured UV & Mildew Resistant Bead
- 11:Interior / Exterior
- 12:Vacuum Filled Tubes
- 13:Lifetime Warranty
- Windows
- Stucco
- Expansion Joints
- Doors
- Panel Walls
- Tilt Wall
- Siding
- Precast Units
- Parapets
- Masonry
- Wood
- Ceramic/Porcelain Tile
- Concrete
- Cement Board
- Galvanized
- Aluminum
- Glass
- Vinyl Siding
Surfaces to be caulked must be dry and free of all dirt, dust, oil, mildew, loose paint, old caulk or other contaminates. Bare surfaces should be primed before caulking. Only apply when sealant, surface, and air temperature are above 40ºF and rising. Do not apply on surfaces that exceed 140ºF, or when rain is expected.
- Cut nozzle at a 45º angle. Cured bead should be between 1/8” and 2” wide. Use a foam backer rod for joints that exceed 1/2” in depth.
- Smooth bead with a moistened cloth.
- Clean up uncured material and tools with soap and water.
- Allow 4 to 6 hours before painting. Coverage: 55 linear feet for a 3/16” bead.
NOT INTENDED FOR AREAS THAT WILL BE SUBMERGED IN WATER. KEEP FROM FREEZING. NOT FOR FOOD CONTACT SURFACES.
Immediately after use, clean uncured material and tools with soap and water. Remove cured sealant by cutting with a sharp-edged tool.
- Vehicle: Proprietary Urethane/Modified Acrylic Blend (Siliconized)
- VOC: Non-chemically curing sealant. VOC (less exempt solvents) is <1.5%
- Solids: Approximately 70%
- Weight per Gallon: 9.3 ± 0.5
- Service Temp: -40ºF to 180ºF
- Temp Application Range: 40ºF and rising. Air temp no hotter than 95º and substrate not hotter than 140º
- Freeze Thaw Stability: Passes 5 Cycles@ 0ºF (1 cycle = 16hrs. @ 0ºF, 8hrs at 75ºF)
- Dynamic Joint Movement: Approximately ± 25%
- Flash Point: Not Applicable
- Consistency: 15 to 55 G/S @ 75ºF (SEMCO gun at 50psi)
- Applications: Interior / Exterior
- Life Expectancy: Lifetime performance
- Shelf Life: 24 months when stored at 50ºF to 80ºF
- Coverage: 10.1 fl oz: 55 linear ft. at a 3/16” bead
- Odor: Mild Sweet Acrylic
- Tooling Time: 15 Minutes
- Tack Free Time: 60 Minutes
- Paint Over Time: 4-6 Hours
- Full Cure: 7-14 Days
Product resources
Tower Tech² resources
Tower Tech² Frequently Asked Questions
Does Tower Tech² require a primer?
Bare surfaces should be primed before caulking. This is different from AU-1 and AU-1 Hybrid, which are generally non-priming — Tower Tech² is formulated for reliable adhesion on bare substrates only when primed first.
How long does Tower Tech² take to cure?
Tooling time is 15 minutes and tack-free time is 60 minutes. It's paintable after 4–6 hours, with full cure reached in 7–14 days.
What joint size and movement can Tower Tech² handle?
It's rated for joints up to 2" with proper joint design, and handles approximately ±25% dynamic joint movement (50% total).
What substrates does Tower Tech² bond to?
Masonry, wood, ceramic/porcelain tile, concrete, cement board, galvanized metal, aluminum, glass, and vinyl siding.
What temperature can Tower Tech² be applied in?
Apply only when sealant, surface, and air temperatures are above 40°F and rising, with air no hotter than 95°F and substrate no hotter than 140°F. Don't apply when rain is expected.
Is Tower Tech² paintable?
Yes — it can be painted after 4 to 6 hours, and the cured bead resists dirt pickup, yellowing, and shiners.
What warranty does Tower Tech² come with?
A lifetime warranty. If the product cracks, peels, or separates after proper storage and application, Tower Sealants will replace it when the purchaser returns proof of purchase.
What ASTM standards does Tower Tech² meet?
It exceeds ASTM C-920, Grade NS, Class 25 (Use M, G, A, O & NT); exceeds ASTM C-834, Type OP, Grade -18°C; exceeds Federal Spec TTS-00230C, Type II, Class A; and meets ASTM E84 Class A for flame spread and smoke developed index.
Technical Data Sheet
Tower Tech²
Acrylic Urethane Elastomeric Sealant
Description
Tower Tech² is a 1-component, high performance, gun-grade, Urethane Modified Acrylic Sealant. Premium technology reduces dirt pickup, eliminates yellowing and shiners. Internally plasticized resin requires no mixing or priming to bond to most materials, including concrete, wood and masonry. Tower Tech² has superior adhesion, durability, 50% total joint movement and 800% elongation. It forms an airtight, water resistant seal offering exceptional protection from environmental conditions. Once cured, the bead is mildew resistant. Tower Tech² is safe for UV exposure and will not discolor.
Performance Features
- Exceeds ASTM C-920, Grade NS, Class 25. Use M, G, A, O & NT
- Exceeds ASTM C-834, Type OP, Grade -18°C
- Exceeds Fed. Spec TTS-00230C, Type II, Class A
- Meets ASTM E84 Class A Rating according to Flame Spread Index and Smoke Developed Index
- Up to 2″ in properly designed joints
- 800% elongation
- Superior adhesion
- Internally plasticized
- Exceptional adhesion and durability
- Cured UV & mildew resistant bead
- Interior / exterior
- Vacuum filled tubes
- Lifetime warranty
Product Specifications
- Vehicle
- Proprietary Urethane / Modified Acrylic Blend (Siliconized)
- VOC
- Non-chemically curing sealant. <1.5% less exempt solvents
- Solids
- Approximately 70%
- Weight per Gallon
- 9.3 ± 0.5
- Service Temp
- -40°F to 180°F
- Application Temp Range
- 40°F and rising. Air no hotter than 95°F, substrate no hotter than 140°F
- Freeze-Thaw Stability
- Passes 5 cycles @ 0°F (1 cycle = 16 hrs @ 0°F, 8 hrs @ 75°F)
- Dynamic Joint Movement
- Approximately ±25%
- Flash Point
- Not applicable
- Consistency
- 15 to 55 g/s @ 75°F (SEMCO gun at 50 psi)
- Applications
- Interior / Exterior
- Life Expectancy
- Lifetime performance
- Shelf Life
- 24 months when stored at 50°F to 80°F
- Coverage
- 10.1 fl oz covers ~55 linear ft. at a 3/16″ bead
- Odor
- Mild sweet acrylic
- Tooling Time
- 15 minutes
- Tack-Free Time
- 60 minutes
- Paint Over Time
- 4–6 hours
- Full Cure
- 7–14 days
Applications
- Windows
- Doors
- Siding
- Stucco
- Panel walls
- Precast units
- Expansion joints
- Tilt wall
- Parapets
Substrates
- Masonry
- Concrete
- Aluminum
- Wood
- Cement board
- Glass
- Ceramic / porcelain tile
- Galvanized
- Vinyl siding
Surface Preparation
Surfaces to be caulked must be dry and free of all dirt, dust, oil, mildew, loose paint, old caulk, or other contaminants. Bare surfaces should be primed before caulking. Only apply when sealant, surface, and air temperature are above 40°F and rising. Do not apply on surfaces that exceed 140°F, or when rain is expected.
Application
- Cut nozzle at a 45° angle. Cured bead should be between 1/8″ and 2″ wide. Use a foam backer rod for joints that exceed 1/2″ in depth.
- Smooth bead with a moistened cloth.
- Clean up uncured material and tools with soap and water.
- Allow 4 to 6 hours before painting.
Coverage: 55 linear feet for a 3/16″ bead.
Not intended for areas that will be submerged in water. Keep from freezing. Not for food contact surfaces.
Clean-Up
Immediately after use, clean uncured material and tools with soap and water. Remove cured sealant by cutting with a sharp-edged tool.
Packaging
10.1 fl oz Cartridge
| Color | Item Number | UPC Code |
|---|---|---|
| White | TS-00215 | 843034002158 |
| Clear | TS-00130 | 843034001304 |
| Almond | TS-00228 | 843034002288 |
| Aluminum Gray | TS-00220 | 843034002202 |
| Black | TS-00232 | 843034002325 |
| Bronze | TS-00123 | 843034001236 |
| Gold | TS-00240 | 843034002400 |
| Limestone | TS-00147 | 843034001472 |
| Off White | TS-00142 | 843034001427 |
| Pine Green | TS-00229 | 843034002295 |
| Redwood | TS-00231 | 843034002318 |
| Redwood Tan | TS-00225 | 843034002257 |
| Stone | TS-00196 | 843034001960 |
| Tan | TS-00194 | 843034001946 |
| Woodtone | TS-00230 | 843034002301 |
20 fl oz Sausage Pack
| Color | Item Number | UPC Code |
|---|---|---|
| White | TS-00235 | 843034002356 |
| Almond | TS-00239 | 843034002394 |
| Aluminum Gray | TS-00246 | 843034002462 |
| Black | TS-00245 | 843034002455 |
| Bronze | TS-00238 | 843034002387 |
| Limestone | TS-00237 | 843034002370 |
| Stone | TS-00236 | 843034002363 |
Certification & Testing
| Property | Tower Tech² |
|---|---|
| Type | Acrylic Urethane |
| ASTM Claims | Class 25 |
| Tensile Properties — Cured Sample Value | |
| Maximum Stress (psi) | 152 ± 5 |
| Elongation to Break | 900% ± 44 |
| Elongation Max Stress | 800% ± 10 |
| Performance Test — Result | |
| ASTM-C920 Class 25 | Exceeds |
| TTS-00230 | Pass |
| Property | Tower Tech² |
|---|---|
| Dry Peel Adhesion — ASTM C-794 (pli) | |
| Aluminum | 32–42 |
| Glass | 39–45 |
| Cement | 32 |
| Wet Peel Adhesion — ASTM C-794 (pli) | |
| Aluminum | 20–28 |
| Glass | 25–2* |
| Cement | 14–24 |
| Channel Slump (ASTM C-639) | 0 mm |
| Tack-Free Time (ASTM C-679) | 60 mins |
| Shore A Hardness | 15 ± 2 |
| Formulation Characteristics | |
| Extrusion Rate | 15 g/sec |
| pH | < 8.3 |
| ASTM C-793 | Pass |
| After 250 hrs WOM, -15°F | Pass |
| ±25% Joint Movement — ASTM C-719 | |
| Aluminum | Pass |
| Glass | Pass |
| Cement | Pass |
| AAMA Testing — Result | |
| AAMA 808.3 | Complies with physical requirements |
*The wet peel adhesion value for Glass prints as “25–2” on the source TDS and looks truncated — same issue as AU-1's TDS. Worth confirming the real number with whoever owns these documents, since it looks like a shared template problem across more than one sheet.
Safety
Irritating to skin, eyes and respiratory tract. Harmful if swallowed, inhaled or absorbed through the skin. May cause allergic skin reactions and/or central nervous system depression. Adverse reproduction effects have been reported in animals. May cause adverse kidney effects. Avoid contact with eyes, skin and clothing. Use in a well ventilated area. Wear eye, skin, and respiratory protection. Eye contact: immediately flush with water for 15 minutes and get medical attention immediately. If swallowed: do not induce vomiting; give large quantities of water and get medical attention. Never give anything by mouth to an unconscious person. For health information, refer to the Safety Data Sheet or call ChemTrec at 800-424-9300. Keep out of reach of children.
⚠ Cancer and Reproductive Harm — go to www.P65Warnings.ca.gov for additional information.
First Aid
In case of skin contact, wash off quickly with plenty of soap and water and remove contaminated clothing. For eye contact, flush eyes immediately with large quantities of water for at least 15 minutes. If swallowed, obtain medical treatment immediately — do not induce vomiting. If inhalation causes physical discomfort, move to fresh air; if discomfort persists or any breathing difficulty occurs, seek medical help.
Safety Data Sheets (SDS) are available upon request via towersealants.com or by calling 866-897-7568.
Manufacturer
Tower Sealants, Inc. · 2095 Memorial Park Road, Gainesville, GA 30504
Customer Service: 866-897-7568 · Information: tech@towersealants.com · towersealants.com
This TDS lists the company as “Tower Sealants, Inc.” — AU-1's TDS lists “Tower Sealants, LLC,” and the AU-1 LAB / AU-1 Hybrid sheets just say “Tower Sealants” with no suffix. Minor, but worth standardizing across your TDS library for NAP consistency (the same principle behind Step 13 in the playbook).