Can this just be added to the original Orange seal as a phase in?

As long as you don't mix it with Stans or any other not Orange Seal you should be OK...100% better than Stans

Can this just be added to the original Orange seal as a phase in?

I did exactly that and it worked fine for me. I kept the old bottle, smaller bottle which had maybe a half a tires worth application and added the endurance to it to make it a full. Although I'd say "I think" the endurance formula maybe doesn't seal quite as big or extreme punctures as the regular road formula, but it works pretty well. I'd use endurance over Stan's but prefer the regular orange seal to the endurance. Hope that helps. Cheers.

Do I need to remove the dried up Stans stuck to the inside of my tire before switching to Orange?

To have an effective seal only the old sealant on the tire bead has to be removed. This is really a difficult job which can somewhat made easier with a wire brush.

Do they include an injector?

I did find this: https://www.amazon.com/Advantage-Pro-Sports-END4OZ-INJSYSTEM-Endurance/dp/B015M09DI2/ref=sr_1_2?crid=18HBQPAQQ9OSR&keywords=orange+seal+tubeless+tire+sealant+injector&qid=1564246220&s=gateway&sprefix=orange+seal+tire+sealant+injector%2Caps%2C137&sr=8-2

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Orange Seal - Endurance Formula Tubeless Bike Tire Sealant | Long Lasting, Fast Sealing | for MTB, Road, CX and Gravel Bicycle Tires

Product ID: 193794485

Details

Brand
Orange Seal
Item Weight
0.5 Pounds
Item dimensions L x W x H
12 x 6 x 8
Material
Rubber
Style
8oz w/Injector

⏳2-3x longer lasting sealant

⚡Rapidly seals punctures up to 1/2"

🌿Eco-friendly biodegradable formula

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Description

🚴‍♂️ Seal Fast, Ride Far, Stay Ahead!

TIRE INTEGRITY PRESERVED - Seals without damaging rubber or causing delamination—maintain peak tire performance ride after ride.
ALL TERRAIN COMPATIBILITY - Optimized for MTB, road, CX, and gravel tires—one sealant to rule every ride.
ECO CONSCIOUS PERFORMANCE - Ride green with a biodegradable formula that protects both your tires and the planet.
INSTANT PUNCTURE PROTECTION - Nanite technology seals holes up to 1/4" punctures and 1/2" slices in seconds—never miss a beat.
ENDURANCE THAT OUTLASTS THE RIDE - Stay trail-ready with 60-120 days between top-offs—less maintenance, more adventure.

Orange Seal Endurance Formula is a premium tubeless bike tire sealant engineered for long-lasting durability and rapid puncture sealing. Compatible with all major tubeless tires, it uses advanced nanite particles to seal punctures up to 1/4" and slices up to 1/2" quickly, while its eco-friendly, biodegradable latex formula lasts 2-3 times longer than standard sealants, reducing maintenance and preserving tire integrity across diverse riding conditions.

Specifications

ASIN	B07YF3JQF8
Best Sellers Rank	#702 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #1 in Bike Tire Repair Kits
Brand Name	Orange Seal
Color	Orange
Customer Reviews	4.4 4.4 out of 5 stars (475)
Date First Available	September 26, 2019
Item Dimensions LxWxH	7.09 x 1.97 x 1.97 inches
Item Package Dimensions L x W x H	6.18 x 2.32 x 1.93 inches
Item Weight	8 Ounces
Manufacturer	Orange Seal
Material	Rubber
Model Name	LU0325
Number of Items	1
Package Weight	0.26 Kilograms
Part Number	OS-60810-A
Size	8oz w/Injector
Style	8oz w/Injector
Suggested Users	unisex-adult
Warranty Description	Limited Warranty

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$45.37

Duties & taxes included

In stock

Sold byAmazon USADelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

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

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