Why is this one white compared to other ones that look tan or brownish?

This is a ‘No Clean’ non acid flux I use it for electronics when I don’t want the acid and heavy residue left by the ones that are darker

The maker's description posted right on the Amazon ad says the product is lead free.

Where is the specific temperature information?

You have to do your own research on this. This product's melting temp as right around 350 degrees F.

Is this like a solid wax or a soft paste that can be applied on the PCB? some are labeled as paste but they’re like solid.

This is made of professional grade rosin and petrolatum (vaseline). The paste consistency is very close to that of vaseline.

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Thermaltronics TMT-FP-1 Rosin Flux Paste, 2.0 oz (57 g)

Thermaltronics TMT-FP-1 Rosin Flux Paste, 2.0 oz (57 g)

Product ID: 230390714

🧴2 oz precise paste format

♻️RoHS compliant & low residue

⚙️3" diameter compact can

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363876₫

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Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔥 Elevate Your Soldering Game with Precision & Clean Power!

UNIVERSAL COMPATIBILITY - Optimized for both leaded and lead-free soldering, making it your go-to for any electronics repair or rework.
CLEAN RELIABLE PERFORMANCE - Rosin-based formula cleans oxidation and improves solder flow while leaving minimal, non-corrosive residue.
TRUSTED BY THOUSANDS OF PROS - Highly rated with 4.5 stars and thousands of users, join the community upgrading their soldering game.
COMPACT BENCH FRIENDLY PACKAGING - Small 3" diameter can fits neatly on your workstation, ready for quick access without clutter.
PRECISION CONTROL FOR FLAWLESS JOINTS - Paste consistency lets you apply flux exactly where needed, perfect for fine-pitch and dense PCB work.

The Thermaltronics TMT-FP-1 Rosin Flux Paste is a 2 oz petrolatum-based soldering paste designed for both leaded and lead-free electronics applications. Its rosin formula enhances solder wetting, cleans oxidation, and reduces defects like cold joints and bridging. Packaged in a compact 3" diameter can, it offers precise, mess-free application ideal for hobbyists and professionals. RoHS compliant with low residue, it’s a trusted choice for reliable, clean soldering performance.

Specifications

ASIN	B08GJYQHXZ
Assembled Diameter	3 Inches
Batteries Included?	No
Batteries Required?	No
Best Sellers Rank	#14,042 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #24 in Soldering Flux
Customer Reviews	4.6 4.6 out of 5 stars (2,341)
Cutting Diameter	3 Inches
Date First Available	August 23, 2020
Item Weight	2.82 ounces
Manufacturer	Thermaltronics
Material	Other
Part Number	TMT-FP-1
Thickness	0.62 Inches

Reviews

J**M

18.02.2026

B**T

11.01.2026

E**R

27.11.2025

W**R

6.02.2024

J**S

2.04.2026

B**Y

18.03.2026

A**L

19.11.2025

J**Z

26.10.2025

A**L

16.02.2026

M**.

8.06.2024

C**D

22.01.2026

S**G

1.09.2025

M**A

5.04.2026

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Vietnam.

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