Silicones, silicone oils, sprays
Casting and potting resins)
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Technical Data
Typical values, not a specification. The technical data sheet (TDS) is binding.
Product Information
- Manufacturer
- Permabond Engineering Adhesives Ltd
- Brand
- Permabond
- Container
- 20 g, 50 g
- Country of origin
- Italy
- UFI (Unique Formula Identifier)
- NS00-G0PG-G00V-M1EH
Performance at Full Cure
- Dielectric strength
- 25 kV/mm
Physical Properties
- Color
- colorless
- Chemical group
- Ethyl Cyanoacrylate
- Viscosity (adhesives)
- Low viscosity <500 MPas
- Viscosity mPa.s
- 90-110
Curing values
- Maximum gap fill (mm)
- 0.15
- Fixture time on steel (sec.)
- 10-15
- Hand Strength Rubber (sec.)
- 10-15
- Hand Strength Phenol (sec.)
- 10-15
- Final strength
- 24 hours
Mechanical properties
- Hardness (Shore D)
- 85
Shear strength ISO 4587 in N/mm²
- Steel
- 19-23
Thermal Properties
- Operating temperature (°C)
- -55 to +165
- Storage Temperature (°C)
- 2-7
Product Description
Permabond 820 is a high-temperature resistant ethyl cyanoacrylate adhesive with additional cytotoxicity testing — the biocompatible representative of the 800 series for medical and hygienic bonding applications.
With a viscosity of 100 mPa·s, 820 is low-viscosity and fills gaps up to 0.15 mm. Its handling strength on steel, Buna-N, and phenol is 10 to 15 seconds—comparable to the other high-temperature variants in the series.
What distinguishes 820 from 801/802/825 is its successful cytotoxicity testing—a fundamental biological safety test for materials that come into contact with the body. This qualifies 820 for applications with product hygiene requirements. The steel tensile strength of 19–23 N/mm² and the high-temperature formulation remain unchanged.
High-temperature resistant + biocompatible — the rare combination of a high-temperature ethyl cyanoacrylate with passed cytotoxicity testing. Qualified for applications with medical or hygiene-related requirements.
What makes Permabond 820 stand out
What is Permabond 820 used for?
Processing
Recommended accessories
Important Notes
Which Permabond for which application?
Permabond 820 in direct comparison with related cyanoacrylate products.
Permabond 820 Current Product | Permabond 801 → | Permabond 802 → | Permabond 825 → | |
|---|---|---|---|---|
| Chemistry | Ethyl Cyanoacrylate | Ethyl-CA | Ethyl-CA | Ethyl-CA |
| Viscosity | 100 mPa·s | 10–15 mPa·s | 90-110 mPa·s | 100–150 mPa·s |
| Max. gap fill. | 0.15 mm | 0.05 mm | 0.15 mm | 0.15 mm |
| Finger-tight on steel | 10–15 s | 10–15 s | 10–15 s | 10–20 s |
| Shear strength steel | 19-23 N/mm² | 19-23 N/mm² | 19-23 N/mm² | 15–20 N/mm² |
| Strength / Recommended for | Biocompatible Organic | Ultra-low, Wicking | Medium viscosity, high temperature | Premium 180 °C / 1,000 h |
Frequently asked questions about Permabond 820
Practical application and design questions — answered by SILITECH.
Permabond 820 is an ethyl cyanoacrylate instant adhesive with a viscosity of 100 mPa·s and a maximum gap filling capacity of 0.15 mm. This high-temperature cyanoacrylate adhesive is biocompatible, low-viscosity, and widely applicable.
Permabond 820 reliably bonds steel (19–23 N/mm²), as well as Buna-N rubber and similar elastomers. For polypropylene (PP), polyethylene (PE), PTFE, and silicone, pretreatment with Permabond Polyolefin Primer (POP) is required.
Permabond 820 has passed cytotoxicity testing approved — qualified for demanding industrial applications.
Permabond 820 reaches handling strength on steel in 10–15 seconds. Other typical curing times: 10–15 seconds (Buna N), 10–15 seconds (Phenol). The final strength of 19–23 N/mm² (steel) is reached after 24 hours. Temperature, humidity, and substrate affect the curing rate.
Permabond 820 offers a viscosity of 100 mPa·s, a gap filling capacity of 0.15 mm, and a shear strength of 19–23 N/mm² on steel. Permabond 801 has a viscosity of 10–15 mPa·s, a gap filling capacity of 0.05 mm, and a shear strength of 19–23 N/mm² on steel (ultra-low wicking). Both utilize an ethyl cyanoacrylate base (or a related cyanoacrylate variant).
Permabond 820 should be stored unopened refrigerated at 2 to 7 °C and is stable until the printed expiration date. Allow the bottle to warm to room temperature before opening—this prevents condensation inside, which would reduce its shelf life. Opened bottles remain functional for several months if stored correctly, although the curing rate may decrease over time. We recommend a test bond to check reactivity before critical production applications.
From the Permabond cyanoacrylate range, select according to viscosity and special properties: Permabond 820 (100 mPa·s, 0.15 mm gap width, biocompatible); Permabond 801 (10–15 mPa·s, 0.05 mm, ultra-low viscosity, wicking); Permabond 802 (90–110 mPa·s, 0.15 mm, medium viscosity, high temperature); Permabond 825 (100–150 mPa·s, 0.15 mm, premium 180 °C / 1,000 h). For polypropylene, polyethylene, PTFE, and silicone, pretreatment with Permabond Polyolefin Primer (POP) is always required.