Silicones, silicone oils, sprays
Casting and potting resins)
HS Code:
3506.9190000
Technical Data
Typical values, not a specification. The technical data sheet (TDS) is binding.
Product Information
- Manufacturer
- Permabond Engineering Adhesives Ltd
- Brand
- Permabond
- Container
- 50 ml, 200 ml
- Country of origin
- Italy
Performance at Full Cure
- Shear strength (steel ISO10123)
- 12 MPa
- Dielectric Strength
- 11 kV/mm
- Thermal conductivity
- 0.19 W/(m.K)
Physical Properties
- Color
- orange
- Chemical group
- Acrylic one-component
- Viscosity (adhesives)
- High viscosity >5000 mPas
- Viscosity 2rpm
- 65000
- Viscosity at 20 rpm
- 20000
- Fluorescence
- no
Curing values
- Maximum gap fill (mm)
- 0.5
- Handling strength (M10 steel)@23°C
- 15 minutes
- Functional strength (M10 steel)@23°C
- 1 hour
- Ultimate strength (M10 steel)@23°C
- 24 hours
Thermal Properties
- Coefficient of thermal expansion
- 90 x 10-6 mm/mm/°C
- Storage Temperature (°C)
- 5-25
- Operating temperature (°C)
- -55 to 150
Product Description
Permabond A129 is a medium-strength anaerobic thread sealant in gel form — designed for pressure-tight sealing of coarse pipe threads, with thixotropic consistency for vertical applications and tool-removable locking.
With its thixotropic, non-drip paste consistency, A129 stays precisely where it is applied—even on upright threads. The 0.5 mm gap filling covers coarse pipe and fitting threads where low-viscosity products would fail.
The medium-strength torque (breakaway 12 N·m, further 7 N·m) allows for subsequent disassembly of the connection using standard tools—important for plumbing and pneumatic installations that need to be opened periodically. Corrosion protection and good chemical resistance are also provided.
Thixotropic gel for coarse pipe threads — Permabond A129 seals pipe connections pressure-tight, remains stationary even in vertical threads due to its paste consistency and can later be disassembled with standard tools.
What distinguishes Permabond A129
What is Permabond A129 used for?
Processing
Recommended accessories
Important Notes
Which Permabond anaerobic adhesive for which application?
Permabond A129 in direct comparison with related products of the A series.
Permabond A129 Current Product | Permabond A1044 → | Permabond A1058 → | Permabond A130 → | |
|---|---|---|---|---|
| Application / Strength | Thread sealant gel | Fast-curing, low pressure | High viscosity paste, high pressure | Threadlocker instead of pipe sealant |
| Viscosity | Thixotropic, non-drip | — | 300,000 mPa·s | 1,800 mPa·s |
| Max. gap fill. | 0.5 mm | 0.5 mm | 0.5 mm | 0.12 mm |
| Breakaway Torque | 12 N·m | 20 N·m | 8 N·m | 12 N·m |
| Prevailing torque | 7 N·m | 10 N·m | 6 N·m | 7 N·m |
Frequently asked questions about Permabond A129
Practical application and design questions — answered by SILITECH.
Permabond A129 is a thixotropic, non-drip, single-component acrylic thread sealant with a gap-filling capacity of up to 0.5 mm. This medium-strength thread sealant gel is suitable for coarse pipe threads and plumbing installations. Anaerobic adhesives cure in the absence of air and in contact with metal, making them ideal for tight-tolerance metallic joints.
Anaerobic adhesives like Permabond A129 remain liquid in the bottle (due to contact with air and oxygen) and only begin to harden after bonding under anaerobic conditions and metal-to-metal contact. Curing starts at the metal surface and progresses into the bond gap. The product cures quickly on steel and copper; on stainless steel and zinc, the Permabond A905 activator may be beneficial.
Yes — Permabond A129 is a thread sealant with moderate torque (12 N·m) and can be removed with standard tools. Designed for maintenance of pipe connections.
Permabond A129 does not have specific industry approvals such as WRAS or KTW (drinking water). For general industrial applications, the product is approved according to Permabond's internal specifications; however, product-specific testing prior to series production is recommended.
Permabond A129 typically achieves handling strength after 15 minutes and functional strength after 1 hour at 23 °C on M10 steel. Final strength is reached after 24 hours. On inactive surfaces (stainless steel, zinc) or at low temperatures, the curing time is extended—Permabond A905 activator accelerates the process.
Permabond A129 is a thread sealant gel (thixotropic, non-drip viscosity, 0.5 mm gap filling, 12 N·m breakaway torque). Permabond A1044 is a fast-curing pipe sealant (0.5 mm gap filling, 20 N·m breakaway torque) – fast-curing, low-pressure. Both belong to the anaerobic Permabond A series.
The choice depends on the application: Permabond A129 (gel thread sealant); Permabond A1044 (fast-curing pipe sealant); Permabond A1058 (high-viscosity pipe sealant); Permabond A130 (WRAS threadlocker). For inactive surfaces (stainless steel, zinc, aluminum), Permabond A905 activator be used to accelerate curing.