Solder wire connectors - HAISSTRONICA Green SST-G, AWG 18-16, 500pcs. CE/ISO, 2:1 ratio.
Step-by-step guide: Strip, twist, and heat-seal wires with Haisstronica solder butt connectors.
Haisstronica solder but connectors prevent moisture in confined spaces for reliable joints.
Soldered and glued waterproof connections using Haisstronica solder wire connectors.
Haisstronica solder connectors certified by UL, CE, SGS for industrial safety.
Fast workflow soldering butt connector: use 1800W heat gun, reach 842°F, make sealed splice in about 10 seconds.
How to use solder butt connectors: insert stripped wires, heat with gun until solder ring melts for a strong bond.
Motorcycle wiring repaired using connectors; compare heat tools with solder sticks; reliable sealed connection in rain.
Waterproof wire connectors - HAISSTRONICA Green SST-G, AWG 18-16, 1000pcs. Polyolefin, SGS certified.
Solder sticks for electrical projects, green AWG 18-16 solder terminals providing quick and secure wire seal connections.

Connecteurs thermorétractables - Joint à souder

Prix de vente$73.99 USD Prix normal$79.99 USD
Economisez 8%

Keep the in-between wire range covered.

Have the right sleeve ready when the repair calls for 18–16 AWG wire.

• Heat to connect — the built-in solder ring joins prepared wires without crimping.
• Insulate and seal — the sleeve and adhesive rings help keep moisture out.
• Green 18–16 AWG fit — a dedicated color helps separate this range from neighboring.

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Marque : Haisstronica

Couleur : Blanc, Rouge, Bleu, Jaune, Vert

Style d'emballage : en boîte, en sac, en bouteille

Caractéristiques:

  • Qualité et innovation : En tant qu'acteur innovant du secteur, Haisstronica s'efforce de vous proposer les dernières innovations du secteur. Nos connecteurs de fils à souder sont fabriqués avec des matériaux de haute qualité et soumis à des tests rigoureux pour garantir des performances et une fiabilité optimales. Nous nous engageons à vous fournir des solutions de pointe qui répondent à vos besoins.
  • Soudure et scellement en une seule étape : Nos connecteurs de fils à souder combinent ces deux fonctions en une seule étape. Par simple application de chaleur, la soudure à l'intérieur du connecteur fond et crée un joint étanche et fiable autour des fils. Profitez d'une méthode plus rapide et plus efficace pour des connexions fiables.
  • Applications polyvalentes : Nos connecteurs à souder conviennent à une large gamme de projets électriques. Que vous travailliez dans l'automobile, la marine, la maison ou le bricolage, ces connecteurs sont polyvalents. Des réparations simples aux installations complexes, vous trouverez les connecteurs adaptés à chaque projet.
  • Connexions sûres et durables : Nos connecteurs de fils à soudure garantissent une connexion solide et durable. La soudure fondue forme une liaison solide entre les fils, offrant une excellente conductivité et minimisant les risques de perte de signal ou de connexions intermittentes. Soyez assuré que vos connexions resteront intactes, même dans les environnements les plus exigeants.
  • Étanches et isolés : les connecteurs à souder offrent une excellente étanchéité et une excellente isolation pour vos connexions. La gaine thermorétractable crée une barrière protectrice contre l'humidité, la poussière et la corrosion. Cela garantit la durabilité et la longévité de vos systèmes électriques, même dans des conditions difficiles.
Size chart showing white to yellow heat shrink for wiring, listing product and wire dimensions with matching AWG ranges

How to Choose

  1. Confirm both conductors are within AWG 18-16; select by conductor gauge, not outer insulation diameter alone.
  2. Choose 100PCS for occasional repairs, 500PCS for regular workshop use or 1000PCS for higher-volume stocking.
  3. Verify that the sleeve can overlap intact insulation on both sides of the stripped joint.
  4. Use the red AWG 22-16 option for smaller conductors rather than forcing them into the green connector.

How to Heat and Seal

  1. Disconnect power and strip both wire ends without cutting conductor strands.
  2. Insert the conductors from opposite ends so they overlap inside the central solder ring.
  3. Apply controlled heat while rotating the connector and keeping the heat source moving.
  4. Heat the solder ring until it flows around the conductors, then allow the sleeve and sealing rings to recover evenly.
  5. Stop heating, let the splice cool completely and perform a gentle pull check before restoring power.

Do green solder seal connectors require crimping?

No. Correct installation uses controlled heat to melt the solder ring and recover the sleeve. Do not crimp the solder ring unless the product instructions specifically require it.

How do I select the green connector by AWG?

Use the green connector only when both stripped conductors are within AWG 18-16. Confirm conductor gauge before installation and do not select by insulation color.

How much heat should I apply?

The product imagery shows an 842°F / 450°C heat-gun setting. Keep the tool moving, rotate the connector and stop once the solder has flowed and the sleeve has fully recovered.

How do I know the splice is sealed?

The solder should visibly flow around the conductors, the sleeve should recover without gaps and the end sealing rings should contract around intact insulation. Reject any scorched, split or incompletely recovered connection.

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  • Delivery Time: 1-2 business days to The US and Canada. Delivery times may vary depending on your location and carrier conditions.
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  • 30-Day Returns
    You may request a return within 30 calendar days of delivery. Items must be unused, in their original condition, and include all original packaging and accessories.
  • Damaged, Defective, or Incorrect Items
    Contact us with your order number and photos. If the issue is due to our error, we will cover reasonable return shipping costs or provide an appropriate replacement.
  • Refunds
    Approved refunds are issued to your original payment method within 5 business days after inspection. Your bank may require additional processing time.
  • To start a return, email support@haisstronica.com with your order number and reason for return. Please obtain approval before sending anything back.
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  • 5 stars: 9 (100%)
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R
Ruslan
Wire solder connectors

These work great for quick wire splicing and fixing.

S
Stacy Redus
Super Handy - Love these things

These things are great. I bought a Harbor Freight heat gun years ago, used it once, and stuck it away in a cabinet. Now it's getting a workout while I fix every janky splice I've done on the mower and ATV along with all of the terrible ones on the used trailer I bought. Easy, secure connections. The solder doesn't seem to flow like I expected, but you do see the ring shrink and form around your twisted wires - you also see impressions of individual strands. Good connections all around so far. Highly impressed!

D
Derek
Great for traveling wires

Love them works well for my trailer wiring

S
Steve Baskin
Soldering sticks

I've used these before and am now ordering to replenish my stock. I like the soldering of the wires much better than crimping.

L
LEO LAUGHLIN
Good buy

Good amt of connectors that I commonly use

t
teromig
As listed

As listed

H
Hugh
simple to use

These are good for trailer wiring to keep the water out of the connection.

J
JRDG
Nice

Very good

C
Charley Kirkpatrick
Great product

I love this product!!! I do a lot of electrical upgrades on UTVs, ATVs, and trucks. These are great connectors, that are not only easy to use, but are long lasting, waterproof and inexpensive as well. I highly recommend these.

Close-up of insulated wire connectors joining red, blue, and yellow wires

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Learn More About Porduct

  • haisstronica solder seal wire connectors hot melt adhesive systems provide the right amount of adhesive,which cools,hardens,and reaches its bond strength within seconds,ensuring a weatherproof and long-lasting bond for your application
  • With enough solder wrapping the wire to melt and flow,marine grade wire connectors forming a seal,which ensures long-lasting connections,especially for larger one
  • Specifically designed for use in harsh environments,the heat shrink creates cable entry seals,which offers environmental sealing protection and protects the wires and cables from abrasion,cutting,scuffing and low impact
  • One and Only:Uniquely marked with wire gauges on the polyolefin tubing,Haisstronica's butt connectors are designed for easy identification and quick selection of the appropriate connector
  • Time Saver and Waterproof: Solderless,crimpless, all you need is just a heat gun to finish the joint, much faster and easier than the old way, The solder seal wire connectors is two hot melt waterproof adhesive rings in each butt connector, which help it hold up better to moisture

Use these green solder seal connectors for AWG 18-16 copper-wire splices in compatible automotive harnesses, motorcycles, trailers, boats, lighting, accessories and workshop repairs. The sleeve can solder, insulate and seal the splice in one controlled heating process. Do not use it outside the listed conductor range, on incompatible conductor materials or where the equipment manufacturer requires a mechanical crimp or another approved splice method.

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