TEXXGUARD™ · Acid Corrosion Inhibitors
PERSISTENT PROTECTION
TexxGuard™ is TexxChem's line of Acid Corrosion Inhibitors (ACI) temperature tiered, film persistent inhibitor concentrates engineered to protect steel tubulars, wireline equipment, downhole tools, surface equipment, boiler surfaces and cooling tower components from acid attack during HCl-based acid treatments. The line spans three products rated from ambient service through 290°F (143°C), giving engineers and distributors a temperature matched inhibitor for a wide range of applications without over specifying product for routine jobs. TexxGuard™ is a standalone additive or designed to complement TexxBoost™, TexxStim™, and TexxSafe™ as part of a complete performance acid program.
THE PROBLEM
THE PROBLEM TexxGuard™ SOLVES
Straight acid corrodes steel and commodity corrosion inhibitors are formulated for performance in standard conditions, not the live-acid environment inside a hot wellbore. At elevated bottomhole temperatures, conventional inhibitors lose film persistence rapidly, leaving tubulars and downhole equipment exposed precisely when acid reactivity is highest.
The consequence of a corrosion failure perforated tubing, pitted wireline cable, damaged packers, compromised tools -- routinely exceeds the entire cost of the acid treatment itself. TexxGuard™ proprietary inhibitor chemistry is engineered for film persistence at rated temperature, so protection holds through the full contact window, not just at the start of the job.
INDUSTRIAL APPLICATION
Industrial descaling with HCl or H₂SO₄ demands protection that holds throughout the entire cleaning cycle — not just at initial acid contact. TexxGuard™ proprietary film-persistent inhibitor chemistry adsorbs to metal surfaces and maintains a continuous protective barrier as acid is consumed, making it well-suited for cooling tower descaling, boiler tube and economizer cleaning, and heat exchanger service where extended contact times and mixed metallurgies carbon steel, galvanized, copper alloy expose the limits of commodity inhibitors. The temperature-tiered HT line matches inhibitor selection to actual service conditions, with API RP 42-validated performance at or below 0.05 lb/ft² on C-1010 and L-80 coupons over six-hour contact times.
The TexxGuard™ Line
THREE PRODUCTS. ONE FRAMEWORK.
TexxGuard™
150A
ACID SYSTEM
HCl-based acid systems at 5–15% concentration; optimized for ambient-temperature industrial and low-temperature oilfield applications.
APPLICATIONS
Industrial boiler descaling and heat exchanger cleaning. Cooling tower acid treatment and deposit removal. Industrial pipe, vessel, and process equipment descaling. Low-temperature oilfield acid jobs where BHT does not exceed 150°F. Any HCl application requiring rapid inhibitor film formation at ambient to moderate temperatures.
PERFORMANCE
Formulated with propargyl alcohol as a fast-acting co-inhibitor that provides immediate steel surface coverage during the critical early phase of acid contact — eliminating the film formation lag associated with imidazoline-only inhibitor systems. Meets corrosion rate target of ≤0.05 lb/ft² on C-1010 steel coupons at rated temperature and dose.
DOSE GUIDANCE
3 gpt at ambient–100°F | 5 gpt at 100–125°F | 7 gpt at 125–150°F. Blender-ready liquid concentrate — no special mixing equipment required.
TexxGuard™
HT-200
ACID SYSTEM
HCl-based acid systems; designed for compatibility across a range of HCl concentrations including 15% and 28% HCl.
APPLICATIONS
Oilfield workover acid jobs and matrix acidizing on shallow-to-moderate depth wells where BHT is between 150°F and 200°F. Wireline acid jobs at moderate depth where bottomhole static temperature does not exceed 200°F.
PERFORMANCE
Meets API RP 42 corrosion rate target of ≤0.05 lb/ft² on C-1010 and L-80 coupons; contact time up to 6 hours at rated temperature. Formulated with a formic acid thermal film anchor that activates above 150°F to maintain inhibitor film integrity at elevated bottomhole temperatures.
DOSE GUIDANCE
5 gpt at 150–175°F | 7 gpt at 175–200°F. Blender-ready liquid concentrate — no special mixing equipment required.
TexxGuard™
HT-250
ACID SYSTEM
HCl-based acid systems; designed for compatibility across a range of HCl concentrations
APPLICATIONS
Standard wireline acid jobs in wells with BHT up to 250°F (121°C) -- the most common service range for onshore wireline corrosion inhibition.
Wireline acid jobs at shallow-to-moderate depth where standard inhibitor performance is sufficient.
Ambient-temperature industrial descaling applications where steel protection is required.
PERFORMANCE
Meets API RP 42 corrosion rate target of ≤0.05 lb/ft² on C-1010 and L-80 coupons; contact time up to 6 hours at rated temperature
DOSE GUIDANCE
3 gpt at ambient–150°F; 5 gpt at 150–175°F; 7 gpt at 175–200°F. Blender-ready liquid concentrate -- no special mixing equipment required.
HT-250 is the workhorse of the TexxGuard™ line covering the majority of onshore wireline and workover acid treatments.
TexxGuard™
HT-290
ACID SYSTEM
HCl-based acid systems; designed for compatibility across a range of HCl concentrations
APPLICATIONS
Deep carbonate stimulation treatments where high BHT demands sustained film persistence through full acid contact time.
High-temperature wireline acid jobs in wells with BHT approaching or exceeding 250°F (121°C), where HT-250 is not rated.
Acid frac spearheading in high-BHT wells where live acid contacts steel surfaces under elevated temperature and pressure conditions.
PERFORMANCE
Meets API RP 42 corrosion rate target of ≤0.05 lb/ft² on C-1010 and L-80 coupons; contact time up to 6 hours at 290°F (143°C).
DOSE GUIDANCE
Dose rates scale with BHT; consult TexxChem's dose guidance for temperature-specific rates. Blender-ready liquid concentrate.
TexxGuard™ HT-290's film-persistent inhibitor system is formulated to maintain the protective barrier at 290°F across the extended contact times required in deep, high-temperature acid treatments.
KEY PERFORMANCE CLAIM
WHY ENGINEERS SPECIFY TexxGuard™.
01
TEMPERATURE-TIERED LINE -- MATCH INHIBITOR TO BHT
Three products cover ambient through 290°F (143°C) service. Not every job requires the highest-rated product; TexxGuard™ lets engineers specify the right inhibitor for actual well conditions, not worst case
02
FILM-PERSISTENT INHIBITOR CHEMISTRY
TexxGuard™ proprietary inhibitor chemistry adsorbs to metal surfaces and maintains a protective barrier as acid is consumed not just at the start of contact. Protection is sustained through the full treatment window.
03
API RP 42 PERFORMANCE STANDARD
All TexxGuard™ products are validated to a corrosion rate target of ≤0.05 lb/ft² on C-1010 and L-80 coupons per API RP 42 test method, with contact time performance up to 6 hours at rated temperature
04
COMPATIBLE WITH TexxBoost™, TexxStim™, and TexxSafe™
TexxGuard™ products are designed for additive compatibility across the TexxChem platform, allowing engineers and distributors to build a complete performance acid package -- kinetic moderation, corrosion inhibition, surfactancy, and safety -- from a single supplier
COMPATIBILITY & INTEGRATION
ONE SUPPLIER. ONE BLENDED TREATMENT
TexxGuard™ Acid Corrosion Inhibitors are formulated for additive compatibility with the full TexxChem performance additives platform they can be incorporated alongside TexxBoost™, TexxStim™, or TexxSafe™ packages in a single blended treatment without compatibility conflicts.
Distributors can construct a complete performance acid program covering kinetic moderation, corrosion protection, surfactancy, and safety from TexxChem's additive line, eliminating the need to source inhibitors from a separate supplier. TexxChem's formulation team provides compatibility guidance for specific acid systems and treatment designs, including multi-additive programs at elevated temperature and concentration.