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Quick Details

  • CAS No.: N/A
  • Other Names: Recyclable Vacuum Impregnation Sealant
  • MF: N/A
  • EINECS No.: N/A
  • Place of Origin: Zhejiang, China (Mainland)
  • Classification: Double Components Adhesives
  • Main Raw Material: methacrylate ester
  • Usage: automobile industry, marine industry and etc.
  • Brand Name: Luoke
  • Model Number: LK91S
  • Type: impregnaton sealant
  • 1 Part or 2 Part: 2 Part (resin + catalyst)
  • Appearance: Colorless Liquid
  • Application: vacuum impregnation
  • Quality: Ultraseal MX2 equivalent
  • Storage: cool, dry and dark place
  • Shelf Life: 18 months without adding catalyst
  • OEM production: workable

Packaging & Delivery

Packaging Details i). 25kgs/drum, 1drum/carton
ii). 200kgs/barrel
Delivery Time 7-20 days



Product Description

LK91S Recyclable Vacuum Impregnation Sealant (alternative for Ultraseal MX2)

LK 91S is a low viscosity liquid sealant designed for sealing porosity in metal castings. It may also be used to seal microscopic voids and tight interfaces in other materials. This sealant is specifically formulated for wash water removal and reuse. This is accomplished with the aide of a recycling system. LK 91S is a typically applied with a vacuum impregnation process that removes air from porosity and then saturates the part with liquid sealant. At an elevated temperature, the liquid rapidly polymerizes to form a tough thermoset polymer that permanently seals the internal cavities. Excess liquid sealant is rinsed from the outside of the part with plain water. Parts processed with LK91S are sealed internally but remain cosmetically and dimensionally unchanged.

LK91S is used to seal castings and powder metal components against leakage of air, water, coolants, oils and other fluids. Engines, heads, manifolds and housings in automotive powertrains and fluid handling systems have been sealed successfully for decades.

Packaging & Shipping




Technical Data

Color: clear

Viscosity(cps): 6 to 10

Specific Gravity: <1 (typical value 0.98)

Curing way: 90°C water bathe

Temperature range after curing: -50°C~+200°C

Company Information

-- Factory founded in June, 2007 in Ningbo, China


-- Main Products: 

  • Anaerobic Adhesive(threadlocking, threadsealing, retaining and gasketing)
  • Vacuum Impregnation Sealant(metal casting resin and wood stabilizing resin)
  • Pre-applied Fastener Adhesive
  • RTV Silicone Sealant
  • Acrylic AB Adhesive
  • Epoxy Adhesive (epoxy ab glue and epoxy putty)
  • Cyanoacrylate Adhesive
  • UV Glue

-- Quality Control

  • manufacturing from monomers to finished product in our own workship
  • passed certifications of RoHS, REACH, SGS, PAHS, POHS, Pb-free, Halogen and etc.

-- Customer

Over the past years we have been exporting to over 30 countries all over the world with positive feedback. We always aim for long term cooperation and regard quality and service as our life. 


"Are you a factory/manufacturer? "
Yes, we are, you will be informed the production status in time. Welcome to visit and have a look at our workshop.


"How do you control the quality?"
We use high quality raw materials and our products are made in our workshop from monomers to finished product.

"Is the glue hazardous?"
All of our glues are non-hazardous chemicals. We have many certifications to prove it.


"Warranty (Shelf Life) of your product? "
most items warranted within 2 years from date of manufacturing unopened at cool(below 26°C), dark and dry place.

"Could you supply free samples?"
Yes, free samples available within 3-5 working days, customers afford freight only, you can use express account to collect it.

"Can we use our own label with our logo/brand?"
Yes, as long as the quantity meets our MOQ for customized production.


"Can we buy bulk pack and repack in our location?"

Yes, totally accepted.


"The price seems high for me, any way to reduce the cost?"

Yes, you can increase the quantity, or choose bigger unit package, or give up customized ideas(MOQ will be lower) and etc.

" What if we receive the cargo and find any items missing or defective?"
Please taking video or photo to showing the problem and contact us ASAP, we will check and give you the best solution soon.

"Can we be your sole agent/distributor in our country/state/city?"
Negotiable if you have a good sales network there.

Transaction History of the Supplier

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China (Mainland) | Manufacturer, Trading Company
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The supplier’s transactions conduted via Alibaba.com in the past 6 months.
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Supplier's Trade Assurance Limit: US $31,000
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