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NovaWeld SignFix 8
NovaWeld SignFix 8 is a non-flammable, new generation, two-component structural adhesive and represents a new level of performance for all 10:1 low shrinkage high elongation structural methacrylate adhesives. NovaWeld SignFix 8 offers a very tough and flexible bond, with high peel, fatigue and impact strength, at both low and elevated temperatures. Formulated from innovative and…
Structural Adhesives, Structural Glues Enquire NowDescription
NovaWeld SignFix 8 is a non-flammable, new generation, two-component structural adhesive and represents a new level of performance for all 10:1 low shrinkage high elongation structural methacrylate adhesives.
NovaWeld SignFix 8 offers a very tough and flexible bond, with high peel, fatigue and impact strength, at both low and elevated temperatures. Formulated from innovative and bespoke blend of low-odour, non-flammable and non-carcinogenic monomers – this grade further extends our progress with our range of eco-friendly adhesives.
Applications
NovaWeld SignFix 8 is very versatile, and can bond a wide variety of substrates without the need for surface primers or conditioners. Typically; aluminum’s, steels, ABS, Acrylics, UPVC, acrylic’s GRP, HPL, granite, marbles and wood – typical applications include:
- Bonding nylon & metal locators to ACM without read-though or witness marks.
- Bonding mild steel frame to FRP and offering high vibration and impact resistance.
- Bonding fasteners to GRP and FRP moulded parts.
- Bonding and laminating composite panels.
- Composite and metal fabrication for seating construction.
How to apply NovaWeld SignFix8
- Consult the SignFix8 material safety data sheet (MSDS) before using for the first time.
- Carry out surface preparation where required.
- Remove cap. Repeatedly press the gun trigger until both parts are dispensing before attaching mixer nozzle. This ensures you mix equal amounts of adhesive and activator.
- Apply the mixed adhesive to one surface. Assemble components carefully and clamp if required.
- Take care not to over-tighten – you need to leave some adhesive between the joint.
- Remove any excess adhesive at this point, before the structural glue starts to cure. Use a suitable cleaner such as NovaBond Surface Cleaner.
- Allow the adhesive sufficient time to achieve handling strength* before moving or unclamping.
- Full cure and ultimate bond strength will take 24 hours to achieve.
*Once mixed at the 10:1 ratio the working time of the NovaWeld SignFix 8 is the period whereby the adhesive remains fluid and is easily transferrable between two or more mating surfaces. Nominally 3-4 minutes – temperature, volume and substrate have a direct effect on the length of this period as SignFix 8 cures by an exothermic reaction. Higher temperatures and larger volumes speed the reaction causing a reduction in open and cure time. Lower temperatures and smaller volumes slow the reaction time extending both the open time and ultimate full cure time.
Properties of Uncured Material
| Property & Test Methods | Specification |
| Resin | Low Odor Methacrylate |
| Colour | Black |
| Appearance | Thixotropic Gel |
| Viscosity Brookfield T Bar | 250,000 to 300,000cps |
| Cure System | Non Peroxide |
Properties of Cured Material
| Property & Test Methods | Specification |
| ASTM D1002 Lapshear | (Average over 16 tests) |
| Aluminum (unprepared) | 14.36 Nmm2 |
| Polycarbonate | 5.5 Nmm2 Substrate Failure |
| HIPS | 5.2 Nmm2 Substrate Failure |
| Stainless Steel | 15.33 Nmm2 |
| Mild Steel | 18.37 Nmm2 |
| GRP | 5.8 Nmm2 Substrate Failure |
| ABS | 4.77 Nmm2 |
| Nylon | 4.96 Nmm2 |
| FRP | 5.8 Nmm2 Substrate Failure |
| Gap Fill | 3mm |
| Temperature Range | -55°C to 120ºC |
| Shore Hardness | 60 Shore D |
| Tensile Strength at break (ISO 527 1A) | 10.9 Nmm2 |
| % Elongation at break (ISO 527 1A) | 104 % |
| % Elongation SAF* Method | >200% |
| UV Stability | Excellent |
Availability
Comes in 50ml or 490ml nylon cartridges, requires a 10:1 applicator gun
Storage & Shelf life
NovaWeld SignFix 8 should be stored unopened in a cool dry location, out of direct sunlight. Stored correctly this grade can offer a 12 month shelf life from manufacture.
Please contact us at enquiries@innovasolutions.co.uk for further information or to discuss your application.
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Innova Solutions: bonding people, fixing problems: +44 (0)1282 867 390
