Appellant, injured when a grinding disc he was using disintegrated or exploded, brought suit *614to recover damages for strict liability, breach of warranty, and negligence against appellee Welder’s, a retail distributor of grinding discs, and Gulf States Abrasive Manufacturing Co., the manufacturer. Home Insurance Company, the workmen’s compensation carrier for appellant’s employer, Benton Crawler Works, intervened. The suit against Gulf States was settled and dismissed prior to trial by agreement of the parties. At the conclusion of appellant’s case, appellee Welder’s motion for a directed verdict was granted. Appellant asserts the court erred. We hold the court was correct.
In the determination of a court’s correctness in directing a verdict, we take the evidence and all reasonable inferences most favorable to the party against whom the verdict was directed and, if there is any substantial evidence tending to establish an issue in favor of that party, it is error to take the case from the jury. Daniels v. Chicago, R.I. & Pac. R.R., 256 Ark. 874, 511 S.W. 2d 175 (1974); and Barrentine v. The Henry Wrape Co., 120 Ark. 206, 179 S.W. 328 (1915).
Appellant states that, since the proof necessary to impose liability on the theory of strict liability or implied warranty of merchantability is essentially the same, he will discuss his evidence in terms of strict liability although his evidence also demonstrates the appellee’s liability for breach of warranty. He argues that he met his burden of proof of presenting a factual issue as to strict liability by demonstrating a defect in a product through circumstantial evidence, citing Higgins v. General Motors Corp., 250 Ark. 551, 465 S.W. 2d 898 (1971). There, although we did not judicially recognize the theory of strict liability in tort, in discussing a party’s burden when suing for damages under that theory, we said:
In the absence of direct proof that the product is defective because of a manufacturing flaw or inadequate design, plaintiff must negate the other possible causes of failure of the product for which the defendant would not be responsible in order to raise a reasonable inference that the dangerous condition existed while the product was still in the control of the defendant.
*615Subsequently, our legislature recognized strict liability by enacting Ark. Stat. Ann. § 85-2-318.2 (Supp. 1977), which provides:
A supplier of a product is subject to liability in damages for harm to a person or to property if:
(a) the supplier is engaged in the business of manufacturing, assembling, selling, leasing or otherwise distributing such product;
(b) the product was supplied by him in a defective condition which rendered it unreasonably dangerous; and
(c) the defective condition was a proximate cause of the harm to person or to property.
Appellant argues that he had adduced sufficient evidence to show that the grinding disc was supplied by the appellee distributor in a defective condition which rendered it unreasonably dangerous, and its defective condition was the proximate cause of his injuries.
Appellee Welder’s is engaged in the business of selling and distributing grinding discs and other supplies. It supplied appellant’s employer with this grinding disc in August, 1973. From the time of appellant’s employer’s receipt of the disc, 10 months previously, to the date of appellant’s injury, the disc was stored, hanging on a nail, in an area of the shop in which there were no activities which would disturb the disc. According to the shop foreman, who was present every day, the disc had not been disturbed although the area was open to the public. The foreman had properly attached the disc to the grinding machine the night before appellant’s use and resulting accident. It had not been used previously. Normally, it would last through several days of continuous use before wearing out. Appellant was using the disc properly and had, at the time of his injury, been using it for only 20 or 30 minutes when it unexpectedly exploded. According to appellant’s expert witness, the disintegration was not caused by a malfunction of the grinding machine, and the machine was running smoothly at a speed less than that recommended as the maximum for the disc. He could find nothing that indicated a manufacturing defect. He felt that, sometime after its manufacture, a defect had been injected into the disc. Appellee’s method of transporting the *616discs, loose in its truck, was mot a proper or desirable way to transport the discs. All safety guidelines concerning the handling of abrasives, including grinding discs, were designed to prevent them from receiving any sort of shock by bouncing around or into one another. The disc would be subject to damage if struck an impact blow. When the witness was presented with a hypothetical question containing assumptions of the recited evidence, which included that the disc was transported loose in the trailer of a truck when delivered by appellee, the disc had been stored undisturbed for 10 months after purchase from appellee by appellant’s employer, and it was mounted and used properly, it would be his opinion that the disc was defective when sold and delivered by appellee Welder’s to appellant’s employer.
On cross-examination as to the basis of his opinion, this witness admitted that he had made a previous report to the insurance compensation carrier, the intervener, that “[i]n summary, f find no conditions with either the air grinder or the grinding disc that would have caused this accident,” based upon an examination of the disc fragment. This was still his conclusion at the time he testified at trial; he was not able to tell the jury “with any real certainty that it was defective when it was delivered [by appellee] on August 9 or 8”; it was beyond his ability to make a determination as to why the disc exploded; it was also beyond his ability to determine that the disc was defective when it was delivered by appellee to appellant’s employer; since the disc fragmentized, a defect occurred at some point in time; however, it was beyond his ability to determine when the defective condition was injected; he had no information whereby he could “with reasonable certainty” form an opinion that the disc was not properly manufactured or at the time of delivery to appellee and by appellee to appellant’s employer “it had a defect or did not have a defect;” and finally, he could not “arrive at a conclusion to any reasonable degree of certainty whether it [the disc] was defective or not.”
In Ark. State Highway Comm.'n. v. Byars, 221 Ark. 845, 256 S.W. 2d 738 (1953), we said:
Whether there is substantial evidence to support a verdict is not a question of fact, but one of law. Because a *617witness testifies as to a conclusion on his part does not necessarily mean that the evidence given by him is substantial, when he has not given a satisfactory explanation of how he arrived at the conclusion.
There we reiterated that “to support a verdict the evidence must be of a convincing nature, imparting qualities of reasonable certainty.” See also Sadler v. Scott, 203 Ark. 648, 158 S.W. 2d 40 (1942); and St. Louis Southwestern Ry. Co. v. Braswell, 198 Ark. 143, 127 S.W. 2d 637 (1939). In Kapp v. Sullivan Chevrolet Company, 234 Ark. 395, 353 S.W. 2d 5 (1962), we reiterated that “[c]onjecture and speculation, however plausible, cannot be permitted to supply the place of proof.”
Appellant’s burden of demonstrating a fact issue was dependent upon his expert’s testimony. In summary that witness admitted there was nothing in his examination of the disc fragment which would lead him to a conclusion with any reasonable degree of certainty that the disc was defective when sold by the appellee to the appellant’s employer. It was beyond his ability to say why the disc exploded. Viewing appellant’s evidence most favorably, we cannot say that it negates all possibilities sufficiently to remove the asserted issue of liability from the realm of speculation and conjecture so as to entitle him to have the question presented to the jury.
Appellant next argues, with respect to negligence, that he adduced sufficient evidence on the issue of proximate causation. We have said that proximate cause must be proved, as a fact, by circumstantial or direct evidence, and not by speculation or conjecture. Superior Forwarding Co. v. Garner, 236 Ark. 340, 366 S.W. 2d 290 (1963). In an action for negligence, the evidence is sufficient to show proximate cause if the “facts proved are of such a nature and are so connected and related to each other that the conclusion therefrom may be fairly inferred.” St. Louis-San Fran. Ry. Co. v. Bishop, 182 Ark. 763, 33 S.W. 2d 383 (1931); see also Glidewell v. Arkhola Sand & Gravel Co., 212 Ark. 838, 208 S.W. 2d 4 (1948). Here, although there was evidence that the explosion of the disc caused appellant’s injuries, there was no evidence from which it could be fairly inferred that any action by appellee Welder’s was the proximate cause of the exploding disc and appellant’s resulting injuries. Appellant’s evidence as to *618proximate cause is not sufficient to remove it from the realm of conjecture or speculation.
Affirmed.
Byrd and Purtle, JJ., dissent.