LABOR DAY DEALS START NOW!
Exclusive Offers + 12% Off Almost Everything Else Use Code: LABORDAY12

LABOR DAY DEALS START NOW!
Exclusive Savings + 12% Off Almost Everything Else Use Code: LABORDAY12

Daily Deal: Remington 700 223 Rem Stripped Barreled Action ~~$399.99~~ $299.99 - Get Yours!

EXPRESS BLUE #1 Reviews & Ratings

No damp cabinets or long rusting periods required to get top-quality, good-looking blues. Heat gun or part to 150°-200° F. with propane torch; swab on solution, immerse in boiling water for 5 minutes and card with soft wire wheel or fine steel wool. Repeat the application of solution and boiling until color wanted is achieved, then neutralize. Complete instructions included.

SPECS: 4 oz. (118.2ml) and 16 oz. (473ml) net contents bottles. Detailed instructions.

View Product

Write a review

5 Stars

91%

4 Stars

3 Stars

2 Stars

1 Stars

Reviews Summary

Overall, customers rave about the Mark Lee Express Blue #1, highlighting its effectiveness and user-friendliness. Many are impressed by the quality of the finish it produces, often remarking it rivals more expensive competitors. A few users emphasize the importance of meticulous prep work and following instructions closely for the best results.

What Reviewers Are Saying

Ease of Use

79%

Reviewers commonly express satisfaction with how straightforward the Mark Lee Express Blue #1 is to use, often describing the process as accessible even for first-time users. Many mention that by carefully following the instructions and taking time with preparation, they achieve excellent results with relative ease.

Finish Quality

74%

A significant number of reviews focus on the exceptional quality of the finish produced by this product. Customers highlight that the resulting deep blue finish often surpasses their expectations and can even compare to factory finishes. The durability of the finish is also frequently praised.

Preparation and Process Importance

56%

Many users stress that thorough preparation is key to achieving the best results with Express Blue. Specific mentions about degreasing, sanding, and working with heat indicate that those who invest time in the initial steps see superior outcomes. Attention to detail is deemed crucial for success.

Value for Money

44%

Several reviewers note that the product offers excellent value relative to its performance, often stating that it outperforms more expensive alternatives. Users feel they receive professional-level results at a fraction of the cost, which adds to their overall satisfaction.

Customer Photos & Videos

Sort by Filter by rating

Very excited.

I tried two other Ross brewing techniques before Mark Lee. I use the Home concoction with peroxide vinegar and salt. I also try to commercial brand which didn’t recommend heating. Neither matched this product. I stripped the firearm down to Barr metal again and tried this product and the results were in my opinion almost factory perfect. I filed directions, and I etched the pistol with black diamond under low pressure. I would highly recommend it as it is fast and very consistent results.

Would you recommend this? Yes, I would recommend to a friend

by Robert B. on June 12, 2026

Verified Purchase

Was this review helpful? 1

done exactly what i wanted to do

A+

by CHARLES S. on May 29, 2026

Verified Purchase

Was this review helpful? 1

Best cold blue I've used

Easiest and best cold blue I've used. As with any other prep is king. Very satisfied with the results

Would you recommend this? Yes, I would recommend to a friend

by LAURIE C. on February 20, 2026

Verified Purchase

Was this review helpful? 4

Mark Lee Express Blue no 1

I have been rust blueing for a long time, I've used most of the products available like the old Herters Belgian Blue and Dicropan IM and this product is by far the best of the bunch. You must make sure that the surface is clean and completely oil free. If you do that it will produce a very nice durable finish that exceeds any other products I've ever used

Would you recommend this? Yes, I would recommend to a friend

Express Blue

Finley has a few minutes to get back to the model 11. Mark Lee express Blue is amazing. The process is simple. Way beyond my expectations. Extremely professional finish. Fantastic product that actually works as advertised.

Would you recommend this? Yes, I would recommend to a friend

by Steve D. on August 05, 2025

Verified Purchase

Was this review helpful? 1

Much, much, better than others

I've blue-blacked 4 1911 slides with MARK LEE EXPRESS BLUE with wonderful results. Out of curiosity I tries another blue-black from another well known metal treating company, BIG mistake, it was way more expensive, results bad.

Would you recommend this? Yes, I would recommend to a friend

Mark Lee bluing works

I used Mark Lee #1 about 7 years ago on 2 separate 1811 builds. Still looks superb. Initially, I was going to DLC one of the pistols, changed my mind. Mark Lee's bluing looks too good.

Would you recommend this? Yes, I would recommend to a friend

Mark lee express blue

I get great result with

by DAVID S. on April 01, 2025

Verified Purchase

Was this review helpful? 1

Marklee for the win.

My goto for slow rust blue. I have used this product before and it works great. Will order again as not many dealers offer.

Would you recommend this? Yes, I would recommend to a friend

by WILLIAM W. on February 26, 2025

Verified Purchase

Was this review helpful? 1

Good stuff

Takes a little patience but it does work really well

by MIKE W. on January 23, 2025

Verified Purchase

Was this review helpful? 0