MG Chemicals 443, Superwick #3 Green, Static Free, 2mm x 25ft, Case of 5
MG Chemicals 443, Superwick #3 Green, Static Free, 2mm x 25ft, Case of 5
MG Chemicals 443 Superwick Fine Braid is green-coded #3 desoldering braid, 2.0 mm wide, supplied in nominal 25 ft spools. Its tightly woven, oxide-free copper is coated with RMA flux for fast solder uptake during PCB repair and surface solder cleanup, helping minimize dwell time. This listing supplies a case of five spools.
Important ESD clarification: The existing product title includes “Static Free,” but the manufacturer's current packaging table lists the 443 25 ft spool as not ESD safe. The family's ESD-safe bobbin claim applies to its 5 ft sizes, not this package. Select packaging appropriate to your workstation requirements.
Best Uses / Applications
- Surface solder removal during PCB rework and repair.
- Benchtop electronics service and surface-mount assembly touch-up.
- Work where 2.0 mm braid fits the solder area and adjacent-component clearance.
- Repair operations choosing 25 ft spools where non-ESD-safe packaging is acceptable.
Application limitation: Although the manufacturer overview mentions through-hole repair, its application instructions say braid works best on surface solder and is not recommended for solder inside plated-through holes.
Key Features
- Tightly woven, oxide-free copper for fast wicking and reduced dwell time.
- RMA flux coating, distinct from the separately documented NS and LF families.
- Manufacturer-reported non-corrosive residue; cleaning recommended.
- Green #3 identification and nominal 25 ft length per spool.
- Economical fine-braid format, as described by the manufacturer.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer / part number | MG Chemicals / 443 |
| Family | 400 Series Superwick Fine Braid |
| Width | 2.0 mm / manufacturer nominal 0.08 in. |
| Length per spool | 25 ft nominal; manufacturer family length approximately 7.5 m |
| Color / size | Green / #3 |
| Package quantity | Case of 5 spools |
| Spool ESD safe? | No, per manufacturer packaging table |
| Braid material | Tightly woven, oxide-free copper |
| Flux description | RMA flux |
| Flux classification, TDS | R (Rosin), ROL0 |
| Flux percentage, TDS | Less than 5% |
| Residue | Non-corrosive, manufacturer reported |
| Cleaning | Recommended |
| Shelf life | 10 years |
| Storage | 22–27°C, dry and away from sunlight and moisture; shrink wrapping recommended for extended storage |
| Manufacturer listing | TDS identifies the family as NSF Nonfood Compounds Program listed |
| Documents | TDS September 10, 2025; SDS September 25, 2025, version 5.00 |
The SDS composition table reports 95% copper and 5% rosin by weight; the TDS separately reports flux content as less than 5%. These are the respective document statements, not a new measured composition claim.
Compare RMA Superwick Packages
| Part | Width / color | Length | ESD-safe packaging |
|---|---|---|---|
| 425 | 2.0 mm / Green | 5 ft | Yes |
| 443 | 2.0 mm / Green | 25 ft | No |
| 453 | 2.0 mm / Green | 50 ft | No |
| 426 | 2.5 mm / Blue | 5 ft | Yes |
| 444 | 2.5 mm / Blue | 25 ft | No |
These are standard RMA-family part numbers without an NS or LF suffix. Do not substitute NS-family documents or assume packaging is ESD safe because another length is.
Application and Cleaning Guidance
- Remove conformal coating or contamination from the work area.
- Use a soldering-iron temperature qualified for the assembly. For lead-free solder, the TDS suggests starting at about 315°C and adjusting as needed.
- If appropriate, apply compatible flux to the lead or land area.
- Place braid on the solder and the iron tip on the braid, avoiding other components.
- When wicking ends, remove iron and braid together.
- Trim the used section, allow the area to cool and repeat as needed.
- Clean accumulated flux residue with an appropriate flux remover and inspect according to the assembly process.
The TDS names MG 4140, 4140A, 4050A and 413B as example flux removers. Confirm material compatibility and follow the selected cleaner's instructions before use.
Safety and Handling
The SDS identifies rosin-related respiratory and skin sensitization hazards. Avoid breathing fumes, use appropriate ventilation and protective gloves, and follow the full SDS, including respiratory-protection guidance where ventilation is inadequate. Do not use high-temperature torch soldering, torch welding or brazing methods. Used braid and solder can remain hot.
Frequently Asked Questions
What size is MG Chemicals 443?
It is green #3 braid, 2.0 mm wide, supplied in nominal 25 ft spools.
How many spools are included?
This listing supplies a case of five 25 ft spools.
Is 443's spool ESD safe?
No. Despite “Static Free” in the preserved listing title, the manufacturer's packaging table marks the 25 ft 443 spool as not ESD safe.
Is this the same as 453-NS?
No. 443 is standard RMA-family braid in a 25 ft format. 453-NS belongs to the separately documented no-clean family and has a nominal 50 ft length.
Should the residue be cleaned?
Yes, the TDS recommends cleaning and includes removal of accumulated flux residue in its instructions.
Can it clear solder inside plated-through holes?
The manufacturer application instructions do not recommend this method for solder inside plated-through holes. Braid works best on surface solder.
How does 443 differ from 444?
Both use non-ESD-safe 25 ft spools. 443 is green 2.0 mm braid; 444 is blue 2.5 mm braid.
How long can it be stored?
The TDS lists a ten-year shelf life with appropriate storage. Keep dry at 22–27°C, away from sunlight and moisture; shrink wrapping is recommended for extended storage.
Technical and Safety Documents
MG Chemicals 400 Series RMA Superwick Technical Data Sheet
MG Chemicals 400 Series RMA Superwick Safety Data Sheet
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