Silicones, silicone oils, sprays
Casting and potting resins)
Internal reference:
49-735.FL
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
- 20 g, 50 g
- Country of origin
- Italy
Performance at Full Cure
- Impact strength (ASTM D-950)
- 5-10 kJ/m²
- Dielectric strength
- 25 kV/mm
- Dielectric strength
- 40-60 N/25mm
Physical Properties
- Color
- black
- Chemical group
- Ethyl Cyanoacrylate
- Viscosity (adhesives)
- Low viscosity <500 MPas
- Viscosity mPa.s
- 100-200
Curing values
- Maximum gap fill (mm)
- 0.15
- Fixture time on steel (sec.)
- 30-50
- Handling strength of aluminum (sec.)
- 35-50
- Hand Strength Rubber (sec.)
- 10-15
- Hand Strength Phenol (sec.)
- 5-10
- Final strength
- 24 hours
Mechanical properties
- Hardness (Shore D)
- 85
Shear strength ISO 4587 in N/mm²
- Steel
- 24-30
- Aluminum
- 13-15
- ABS
- >6
- PVC
- >6
- PC
- >5
Thermal Properties
- Storage Temperature (°C)
- 2-7
- Operating temperature (°C)
- -55 to +120
Product Description
Permabond 735 is the black pigmented variant of a toughened ethyl cyanoacrylate adhesive — developed for bonds that must withstand impact and peel stress and remain visually unobtrusive on dark surfaces.
With a viscosity of 100–200 mPa·s, 735 is medium-viscosity and fills gaps up to 0.15 mm. Its black pigmentation makes it the first choice for visible adhesive joints on dark substrates—plastic housings, rubber components, or metal with a dark powder coating.
The toughened chemistry delivers the same impact and peel values as 731 Clear (5–10 kJ/m² impact resistance, 40–60 N/25 mm peel resistance) and achieves a shear strength of 24–30 N/mm² on steel. On ABS, PVC, and polycarbonate, the fracture test results in substrate failure.
Black pigmented and toughened — the only dark-colored variant of the toughened Permabond range. Ideal for visible adhesive joints on black or dark substrates, without compromising impact and peel strength.
What distinguishes Permabond 735
What is Permabond 735 used for?
Processing
Recommended accessories
Important Notes
Which Permabond for which application?
Permabond 735 in direct comparison with related cyanoacrylate products.
Permabond 735 Current Product | Permabond 731 Clear → | Permabond 737MM → | Permabond 792 → | |
|---|---|---|---|---|
| Chemistry | Ethyl cyanoacrylate (toughened) | Ethyl-CA (toughened) | Ethyl-CA (toughened) | Ethyl-CA |
| Viscosity | 100-200 mPa·s | 150 mPa·s | 2,000–4,000 mPa·s | 60–125 mPa·s |
| Max. gap fill. | 0.15 mm | 0.15 mm | 0.5 mm | 0.15 mm |
| Finger-tight on steel | 30–50 s | <30 s | 15–20 s | 2–3 s |
| Shear strength steel | 24-30 N/mm² | 24-30 N/mm² | 19–23 N/mm² | 18–22 N/mm² |
| Strength / Recommended for | Pigmented Black | Colorless standard variant | Black paste, 0.5 mm gap | Standard colorless |
Frequently asked questions about Permabond 735
Practical application and design questions — answered by SILITECH.
Permabond 735 is a tough, elastic ethyl cyanoacrylate superglue with a viscosity of 100–200 mPa·s and a maximum gap filling capacity of 0.15 mm. This tough, elastic black cyanoacrylate adhesive is impact-resistant and inconspicuous on dark surfaces.
Permabond 735 reliably bonds steel (24–30 N/mm²), aluminum (13–15 N/mm²), ABS (>6 N/mm² (substrate failure)), PVC (>6 N/mm² (substrate failure)), polycarbonate (>5 N/mm² (substrate failure)), 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.
Black pigmented and toughened — the only dark-colored variant of the toughened Permabond range. Ideal for visible adhesive joints on black or dark substrates, without compromising impact and peel strength.
Permabond 735 reaches handling strength on steel in 30–50 seconds. Other typical curing times: 35–50 seconds (aluminum), 10–15 seconds (Buna N), 5–10 seconds (phenol). The final strength of 24–30 N/mm² (steel) is reached after 24 hours. Temperature, humidity, and substrate affect the curing rate.
Permabond 735 offers a viscosity of 100–200 mPa·s, a gap filling capacity of 0.15 mm, and a shear strength of 24–30 N/mm² on steel. Permabond 731 Clear has a viscosity of 150 mPa·s, a gap filling capacity of 0.15 mm, and a shear strength of 24–30 N/mm² on steel (colorless standard version). Both utilize an ethyl cyanoacrylate (toughened) base (or a related cyanoacrylate variant).
Permabond 735 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 735 (100–200 mPa·s, 0.15 mm gap width, pigmented); Permabond 731 Clear (150 mPa·s, 0.15 mm, colorless standard version); Permabond 737MM (2,000–4,000 mPa·s, 0.5 mm, black paste, 0.5 mm gap); Permabond 792 (60–125 mPa·s, 0.15 mm, standard colorless). For polypropylene, polyethylene, PTFE, and silicone, pretreatment with Permabond Polyolefin Primer (POP) is always required.