Chip Quik NC191AX15T5 Leaded Solder Paste 15g
- Sn63/Pb37 leaded alloy, melting point 183 C (361 F)
- T5 powder, 15 to 25 microns
- 85.75% metal by weight
- 15 g (5 cc) syringe
- Synthetic no-clean flux, classified ROL0
- Halogen free by the EN14582 test method
- Refrigerate at 3 to 8 C, shelf life over 12 months
Last refreshed Sep 28, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A leaded no-clean solder paste in a small syringe, with fine powder and a flow-focused flux. It needs refrigerated storage and a warm-up before use, and it contains lead.
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ASIN: B08KR7W7SQModel: NC191AX T5Category: Solder
Overview
Chip Quik makes this Smooth Flow leaded solder paste with a lower density flux vehicle for better shear spread and improved flow during heating. It is a synthetic no-clean paste supplied in a syringe with a fine powder grade.
The reason to buy it is the flow-focused flux and fine powder in a small syringe, with stencil life figures given for two humidity bands. The limitation is the handling routine: the paste must be refrigerated and brought to temperature, and the alloy contains lead.
Who it's for
Electronics assemblers and repair benches working with leaded processes can use the small syringe for limited runs. Teams that need a lead-free alloy, or that cannot refrigerate and temper the paste before use, should choose differently.
Pros and cons
- Flow-focused flux vehicle
- Halogen free per test method
- No-clean synthetic flux
- Fine powder grade
- Needs refrigeration and warm-up before use
- Small syringe suits limited runs
Performance notes
A lower density flux vehicle spreads better under shear and flows more freely during heating, per the maker. The paste must reach operating temperature before use, and stencil life depends on humidity: longer at lower humidity, shorter at higher. Stencils can be cleaned by automated systems or by hand with isopropyl alcohol.
Specifications
| Brand | Chip Quik |
|---|---|
| Model | NC191AX T5 |
| Dimensions & fit | |
| Particle size | T5 (15 to 25 microns) |
| Size | 5 cc / 15 g syringe |
| Item weight | 0.529 ounces |
| Construction & materials | |
| Shelf life | Over 12 months refrigerated, over 6 months unrefrigerated |
| Other details | |
| Alloy ratio | Sn63/Pb37 (leaded) |
| Melting point | 183 C (361 F) |
| Flux type | Synthetic no-clean |
| Halogen | Halogen free (EN14582) |
| Metal content | 85.75% by weight |
| Flux classification | ROL0 |
| Stencil life | Over 8 hours at 20 to 50% RH, over 4 hours at 50 to 70% RH (22 to 28 C) |
| Storage | Refrigerate at 3 to 8 C (37 to 46 F), do not freeze |
Frequently asked questions
How should I store Chip Quik NC191AX15T5 solder paste?
Refrigerate at 3 to 8 C (37 to 46 F) and do not freeze. Allow 4 hours for the paste to reach 20 to 25 C (68 to 77 F) before use. Shelf life is over 12 months refrigerated and over 6 months unrefrigerated.
How do I clean a stencil after using Chip Quik NC191AX15T5?
Automated stencil cleaning systems work for both stencil and misprinted boards. Manual cleaning uses isopropyl alcohol (IPA).
Is Chip Quik NC191AX15T5 lead-free?
No. The alloy is Sn63/Pb37, a leaded alloy.